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Vast cosmic voids are far from empty  — they're hiding something dark

At the very largest scales, galaxies are not scattered around randomly. Instead, they form a pattern called the cosmic web. In fact, this is the largest pattern found in nature, with galaxies clumping together to form clusters, stringing themselves along filaments that stretch tens of millions of light-years on a side, and extending along broad walls that separate vast regions of the universe from each other. These are the cosmic voids. The smallest voids are about 20 million light-years across on a side, and the largest ones go for hundreds of millions of light-years. They are the true cosmic deserts. But just like deserts on Earth, they're not entirely empty. So what's in these cosmic voids? Within the voids, sophisticated observations can detect faint hints of structures, like small, dim dwarf galaxies dotting the vast expanses. Computer simulations reveal that there is even more to the story. In addition to normal matter, there's dark matter. We can only see high-density clumps of dark matter because those have enough gravity to pull in normal matter that turns into stars and galaxies to illuminate our observations. And in the voids, there simply isn't enough density of dark matter, so nothing really lights up. But computer simulations show that there are filaments and tendrils of dark matter crisscrossing the voids like a faint echo of the grand cosmic web, repeating itself in miniature. Yet there are regions deep within the cosmic voids where not even dark matter penetrates. These are the lowest-density regions of the entire universe. Still, if you work hard enough and are patient enough, you will detect an occasional bit of matter. The overall average density of the universe is roughly one hydrogen atom per cubic meter, and in the deepest corners of the voids, the average density is over 100 times less than that. So you could swim through the deepest voids and encounter a single hydrogen atom in, say, an entire football field's worth of space. There is something else that fills up the voids: radiation. The cosmic microwave background — the leftover light from when the universe was only 380,000 years old — soaks the entire cosmos, filling every cubic centimeter. It makes up the vast majority of the radiation in the universe. No matter where you go, you can't escape the cosmic microwave background. But that radiation is very old and very deeply redshifted into the microwave bands. It carries essentially no energy, so it barely counts. That leaves one other component of the deepest parts of the voids. It's a very weak component, but it is a critical one for the universe: dark energy. Dark energy accounts for roughly 70% of the total energy density of the cosmos, but in most of the dense structures, like galaxies and clusters, you never know it's there. Deep in the voids, however, dark energy takes over. It's the only thing left. This means that although the voids lack matter, they are filled to the brim with dark energy. And it's in the voids that dark energy is doing its work of tearing the universe apart.

2025-06-10 王思元 航空 英-中
VCI维持2025年前景预期

中化新网讯 近日，德国化学工业协会(VCI)表示，尽管德国化学及制药行业年初业绩“好于预期”，但该机构仍维持其2025年预期不变。VCI表示：“今年的化工生产可能会停滞不前，行业销量或略有下降。如果关税冲突不进一步升级，化工行业前景最早可能在今年就会好转。” VCI表示，各国化工行业2025年第一季度的生产和销售都出现大幅增长，弥补了前几个月的经济衰退。然而，VCI认为，许多公司担心未来几个月还会遭遇挫折。该机构报告称：“美国政府不稳定的关税政策正在减少化学工业及其客户的出口机会。此外，用于对美国出口的中国商品可能会越来越多地转向欧洲，并增加欧洲的进口压力。” 德国今年一季度化学品产量(不包括制药)同比下降0.9%，但环比增长4.7%。化学及制药产量同比增长1.2%，环比增长6.7%。生产者价格指数同比上涨1.1%，环比上涨0.6%。VCI表示，德国化工产能利用率为78.2%，而2024年第四季度为74.7%，不过仍低于盈利阈值。今年第一季度的好转几乎影响了所有部门，并受到德国和国外业务强劲的推动。 德国化学及制药行业的总销售额环比增长4.4%，同比增长1.8%，达到548亿欧元。德国国内销售额环比增长4.3%，同比增长2.2%，而德国以外其他国家的销售额环比增长4.5%，同比增长1.6%。

2025-06-10 王思元 化工 中-英
Nation's trade in services accelerating

Driven by burgeoning inbound tourism and robust growth in the knowledge-intensive service sector, China's trade in services registered swift expansion in the first four months of the year, underscoring the country's efforts in fostering new growth drivers amid rising trade barriers, analysts said. Although uncertainties still cloud tariff negotiations with the United States, China is committed to opening its door even wider and enhancing its global competitiveness to respond to intensifying protectionism, they added. From January to April, China's trade in services continued to grow at a relatively fast pace, with the total import and export value reaching 2.63 trillion yuan ($366 billion), a year-on-year increase of 8.2 percent, the Ministry of Commerce said in a news release on Friday. China's trade in knowledge-intensive services recorded a steady increase during this period, with total imports and exports reaching over 1 trillion yuan, up 5.5 percent year-on-year, the ministry said. The export of travel services, in particular, grew 79.9 percent year-on-year during the first four months, recording the fastest growth among all subsectors, it added. Expanding openness The surge in the travel service sector is largely attributed to China's unilateral visa exemption for citizens of 43 countries and its 144-hour visa-free transit policy for citizens from 54 countries. These measures have fostered a more convenient climate for foreign tourists coming to China, according to experts. "China's willingness to invite the world in demonstrates the nation's commitment to expanding openness even when certain countries practice unilateralism," said Chen Jianwei, a researcher at the Academy of China Open Economy Studies of the University of International Business and Economics in Beijing. In addition, the country recently upgraded its instant tax refund system for foreign visitors, which, coupled with its improved payment services, makes China an appealing destination for both travel and shopping. While the US is attempting to reshape global supply chains through tariffs, China is taking a totally different approach, Chen said. China has reduced the minimum purchase threshold for tax refunds to 200 yuan from 500 yuan as part of the nation's broader efforts to strengthen the clout of its consumer market and, thereby, cement its position in global supply chains, he said. "This will compel other countries and global companies to carefully weigh the costs of decoupling from China against the dividends of engaging with the Chinese market," he added. Meng Pu, chairman of Qualcomm China, said: "Amid China's fast-growing trade in services, we not only see greater efficiency and innovative applications brought by technology, but also the tremendous potential for win-win cooperation. Technology can only unleash its maximum value within an open and collaborative ecosystem." Top negotiators from Beijing and Washington are scheduled to hold the first meeting of the China-US economic and trade consultation mechanism during Vice-Premier He Lifeng's visit to the United Kingdom from Sunday to Friday. The meeting will come after the two countries held economic and trade talks in May in Geneva, Switzerland, during which they agreed on a 90-day pause on triple-digit tariffs to allow further negotiations. Zhao Jinping, vice-president of the China Association of Trade in Services, said that with the uncertain prospects of US tariffs on China's trade in goods, it is crucial for China to tap into its trade in services as a means of buffering potential headwinds. Looking ahead, China will push for the high-standard opening-up of its services trade by actively aligning with international high-standard economic and trade rules, and go ahead with the implementation of the negative list for cross-border trade in services, he added.

2025-06-09 王思元 CATTI练笔 英-中
四川两所“双一流”高校领导班子拟调整

6月6日，中共四川省委组织部发布干部任前公示，涉及成都中医药大学、西南石油大学2所“双一流”高校： 曾芳，女，汉族，1979年3月生，在职博士研究生，中共党员，现任成都中医药大学党委常委、副校长，拟任省管本科高校正职。 衡彤，女，汉族，1968年7月生，在职博士研究生，中共党员，现任西南石油大学党委副书记，拟任省管本科高校正职。 曾芳简历 曾芳，汉族，中共党员，教授，博士生导师。现任成都中医药大学党委常委、副校长。 历任成都中医药大学针灸推拿学院/第三附属医院副院长、党委副书记、院长。 衡彤简历 衡彤，女，汉族，1968年7月生，四川盐亭人，1999年10月加入中国共产党，1990年7月参加工作，四川大学水文学和水资源专业毕业，研究生学历，工学博士。现任西南石油大学党委副书记。 来源：成都发布、成都中医药大学、西南石油大学。

2025-06-09 吴恩琪 教育资讯 中-英
“五一”假期全国快递包裹揽投量同比增长超两成

记者5月6日从国家邮政局了解到，今年“五一”假期，全国邮政快递业累计揽投快递包裹超48亿件，同比增长超两成，创历史同期新高。数据折射出我国消费市场平稳发展态势，经济高质量发展呈现强劲势头。 “五一”期间，全国文旅市场热度攀升，邮政快递业加速与文旅产业深度融合，创新服务模式，持续深耕县域市场。在湖北武汉，保成路夜市延长营业时间，快递夜间揽件量大幅增长；在四川成都，大熊猫基地的熊猫玩偶通过快递寄往世界各地；在广东四会，“快递＋制造”助力玉石产业走向全国乃至全球市场；在浙江常山，一辆辆快递车穿越山间，将胡柚、猴头菇等农产品运往各地。 假日里，环保理念与时尚新消费密切结合，行业绿色转型成效显著。在海南，全生物降解包装袋在快件揽收环节大量应用；在浙江杭州，标准化循环箱在多个使用场景试点应用，不但减少了包装破损，还降低了资源消耗。 国家邮政局相关负责人表示，今年“五一”假期，在国家大力提振消费、全方位扩大国内需求的背景下，邮政快递业持续加强服务供给能力建设，深化线上线下、商旅文体健等多业态融合，支持多元化消费场景创新，以行业高质量供给创造了更多的有效需求，助力加快构建新发展格局。

2025-06-09 王思元 交通运输 中-英
喜马拉雅航空十载风华：深化尼中合作共启崭新征程

中国民航网讯：2025年6月5日喜马拉雅航空公司（以下简称：喜航）迎来了具有重大意义的里程碑——正式航班运营满十周年。为隆重庆祝这一时刻，一场盛大的庆典活动在加德满都隆重举行。活动现场嘉宾云集，西藏航通党总支书记、董事长四郎泽培、中国驻尼泊尔大使陈松、参赞谢宇、尼泊尔文化、旅游与民航部联合秘书穆凯什・丹戈尔、尼泊尔民航局副局长迪奥・钱德拉・拉尔・卡恩、喜航总裁周恩永及各相关部门负责人、职工代表等200余人齐聚一堂，共同见证这一荣耀时刻。​ 在喜航十周年来临之际，喜航的十年发展也得到了尼方的高度认可。尼泊尔总理奥利阁下亲自发来贺信，称赞喜马拉雅航空“安全、成功航行的荣耀十年”，并对其在深化中尼友谊、便利民众出行方面的积极作用给予高度评价。这份肯定既是荣誉，更是鞭策和鼓励，激励我们持续深耕本地、服务区域，为中尼合作注入更多动力。​ 这些年来，喜航犹如振翅高飞的雄鹰，稳步拓展其航线网络，不仅覆盖中东与南亚地区，更是逐渐在国际航空舞台上崭露头角，成为尼泊尔颇具知名度的国际航空公司。如今，喜航已拥有四架不同型号的飞机，致力于为全球各地的旅客提供优质的航空服务。​ 庆典上，西藏航通党总支书记、董事长四郎泽培感慨万千。他表示，喜航这十年的发展历程，对于尼泊尔与中国而言，皆是值得骄傲的辉煌篇章。他进一步强调，两国之间的合作与友谊应如醇酒，愈久弥香，借由“一带一路”倡议等契机，将不断强化民间交往，增进彼此情谊。 中国驻尼泊尔大使陈松，对喜航在艰难时期为尼泊尔所做出的卓越贡献表达了诚挚的感谢，并衷心祝愿喜航在未来的征程中继续高歌猛进，再创辉煌。他高度赞扬喜航的斐然进步，称其为中尼友谊不断深化、共同构建美好未来的生动象征，有力彰显了两国合作的丰硕成果。​ 喜航总裁周恩永在欢迎辞中说道：“我们矢志不渝的使命，是搭建一座连接尼泊尔与世界的空中桥梁。在过去的十年里，我们朝着这一宏伟目标迈出了坚实且显著的步伐。这段旨在帮助尼泊尔从内陆国家华丽转身，紧密连接世界的伟大旅程，如今已趋近圆满。” 尼泊尔民航局副局长迪奥・钱德拉・拉尔・卡恩在致辞中对喜航寄予厚望，坚信在尼泊尔现有的众多航空公司中成为行业翘楚。同时，他对中尼合资企业模式的成功予以高度肯定，并热切期望未来能够涌现出更多类似的合资企业，为尼泊尔航空业的蓬勃发展注入源源不断的活力。​ 此次庆祝活动内容丰富，精彩纷呈。现场不仅有充满民族风情的歌舞表演，还进行了激动人心的抽奖赠礼品活动，同时，“喜马拉雅航空过去十年航程的摄影展”也格外引人注目，一幅幅珍贵的照片，生动展示了公司发展历程中的关键节点与重要时刻。​ （本文图片均由喜航提供） 值得一提的是，此次喜航成立十周年庆典，恰逢尼中外交关系迎来70周年纪念。活动在继续深化中尼合作的强烈愿景中圆满落下帷幕。与会嘉宾纷纷表达了对喜航在全球航空领域日益增长的影响力充满信心，同时满心期待中尼友谊在未来能够得到更为深厚的巩固与发展。​ 庆典活动由南亚网视团队向全球进行现场直播，让广大观众及媒体共同见证了喜马拉雅航空十年辉煌历程的高光时刻，让上线浏览的9万多人一同感受这份荣耀与喜悦。（喜马拉雅航空供稿）（编辑：王亚玲 校对：孙文瑾 审核：程凌）

2025-06-09 俞彦楠 交通运输 中-英
六安石油建成“无废油库”和“无废加能站”

为深入贯彻落实绿色发展理念，中国石化安徽六安石油坚持以绿色、低碳、可续发展为落脚点，积极推进“无废企业建设”。6月，六安油库和长安路加能站作为六安市首个“无废细胞”，成功通过市生态环境局、市商务局、市应急管理局等单位评审验收，分别授予“无废油库”“无废加能站”荣誉称号，为推动“无废城市”建设注入新动能。 “无废油库”建设，践行发展理念 六安石油承担着皖西地区成品油市场保供责任，油库认真落实省、市公司环保相关部署，依据“无废油库”实施方案，建立任务清单，成立工作小组，切实将无废油库工作落到实处。 在技术升级方面，油库配备了先进的油气回收系统，通过活性炭高效捕集储运环节挥发性有机物，真正实现废气“零排放”。库内建设了雨水、含油污水分流管网及一体化处理设施，实现污水100%回用于绿化及场地冲洗。 在固废管理方面，油库立足固体废物控制“减量化、资源化、无害化”总原则，构建“制度约束-智能监管-闭环处置”固废管理体系，在关键区域设置分类垃圾箱，配置快递包装二次回收箱，设置规范的危险废物贮存设施等，实施各类固废精细化管理。 在绿色低碳方面，油库全面推行无纸化办公，从消费端到管理端，用电子文档代替纸质文档，极大的降低办公废物的产生。同时油库大力推动太阳能等清洁能源的融合，利用太阳能板与小型风力发电设备，为库区路灯供电，一年可节省用电5000度，有效地降低碳排放。 “无废加能站”建设，推广绿色能源 长安路加能站是一座集加油、购物、洗车、光伏发电等一体的能源站，站内围绕“无废加能站”创建标准，从支付方式、垃圾分类、新能源使用及宣传推广等方面，实施多项“减污降碳”措施，从源头上降低废弃物产生。一是安装监测设备，在卸油及加油环节，安装了油气回收在线监测设备，通过实时监控、及时预警，防止油品跑、冒、滴、漏，减少挥发性有机物排放，实现了“减排+增收”双赢。二是增设光伏设施，在站房屋顶安装光伏发电板，采用自发自用、余电上网模式，配置单晶硅组建和逆变器，预计年发电量约4350千瓦时，减少二氧化碳排放量2.53吨，在满足站内用电需求的同时，将富余绿电进行外供。三是提升治污水平，站内实行废水回收处理循环利用系统，采取可循环、自净化使用水为主的洗车方式，全年洗车约1.8万辆，减少污水产生量约1300吨。同时，在办公区和生活区配置垃圾分类箱，危废交由小微收集单位规范及时处理。 创建“无废细胞”是传播“无废”理念、提升公众生态文明意识、倡导简约生产生活方式的有效途径。下一步，六安石油将持续推进“无废加能站”建设，将“无废”理念融入到工作生活各个环节，在全市创建工作中走在前、做表率，助力实现“无废城市”的美好愿景。

2025-06-09 俞彦楠 化工 中-英
贵州：2025高考报名总人数43.4万人，参加高考统考人数29.7万人

贵州省招生考试院消息：今年，贵州省高考报名总人数43.4万人，已通过高职分类招生拟录取考生11万人，报名参加高考统考人数29.7万人。全省共设90个考区，243个考点，10464个考场，共配备考试工作人员4.5万名。 全省各级党委政府和教育系统严格落实教育部和省委省政府相关工作部署，省教育高质量发展委员会成员单位及有关部门紧密协作，切实提高思想认识和政治站位，全力开展“2025高考护航行动”。 拧紧责任链条 压实各级责任 召开全省普通高校招生考试安全工作会议，部署全省高考安全工作，制定工作方案，落实部门责任。各级党委政府靠前指挥，充分调动资源力量，强化风险隐患排查，完善安全工作举措，精心做好本地区考试组织、考试环境治理、考风考纪建设等各项工作，压紧压实责任，切实守牢考试安全底线。 部门协作联动 合力护航高考 省教育高质量发展委员会各成员单位步调一致、同频共振，教育行政部门、招生考试机构会同宣传、网信、保密、工信、公安、卫健、市场监管、通信、武警、消防、气象及电力等部门集中开展“净化涉考网络环境”“打击销售作弊器材”“净化考点周边环境”“打击替考作弊”等专项行动，进一步明确工作要求和职责分工，充分发挥各相关部门职能作用，有效消除安全隐患，及时发现和处置各类突发情况，营造和谐安全考试环境。 精细考务组织 维护公平公正 进一步健全考务管理工作制度，完善考务工作人员管理、试卷印制、试卷运送与保管、考试实施、安全保密、评分阅卷等各环节全流程工作规范要求。强化考务培训，扎实开展规范监考、突发事件应急处置等关键工作培训，切实提高考务规范化水平。认真开展考前检查，明确检查内容和标准，掌握设施设备运行、调试情况。严格入场安检，严密防范考试作弊，进一步织牢织密“六位一体”防护网，全力保障考试招生公平、安全、科学、规范。 优化招生服务 营造良好氛围 开展“2025高考护航行动”，协同相关部门为考生做好治安、出行、食宿、卫生等综合保障。关爱特殊困难考生群体，为72名符合条件的残疾考生参加考试提供合理便利。加强考试招生录取政策解读，及时发布考生应知须知等各类信息，公开服务电话，有效回应考生关切。提供志愿填报辅助系统和参考书目，将广泛开展志愿填报服务活动，严格规范高校招生宣传工作，严厉打击虚假宣传、欺诈等违规违法行为，全方位营造规范有序的考试招生良好氛围。

2025-06-09 俞彦楠 教育资讯 中-英
乌玛北高速“吃掉”300万吨工业固废

贺兰山下，用300万吨工业固废铺筑的乌玛高速公路惠农至石嘴山段（简称乌玛北高速公路）正在收尾。工人们正安装护栏螺栓，扳手与金属的撞击声在空旷的路面上回荡，机电工程师正紧张地在高速公路服务区安装设备。该项目是国家首批绿色低碳先进技术示范项目，将于7月底完工并通车。 乌玛北高速公路全长57.3公里，总投资56.45亿元。驱车行驶在新铺的乌玛北高速公路上，黝黑的路面平整如镜。宁夏乌玛北高速公路管理有限公司技术管理部部长叶锋轻抚着护栏说，粉煤灰、煤矸石、钢渣这些曾经的污染源，如今成了筑路材料。 数字见证着绿色变化。乌玛北高速公路利用工业固废突破300万吨，节约砂石、骨料、水泥量388万吨，减少二氧化碳排放10万吨。绿色理念贯穿每个细节，施工线路避开高庙湖湿地，从高庙湖与包兰铁路间空地穿过。施工期间采用环保型路基填料，减少取土场占地200余亩。 乌玛北高速公路通车后，将与京藏高速公路共同构筑起南北贯通宁夏、连通内蒙古和甘肃的交通双通道。往返中卫与惠农的货车司机对此期盼已久，“以前跑中卫还是不太方便，需要在高速公路和国道之间切换，等这条路通了，一口气可以开到中卫工业园区。”

2025-06-07 刘心雨 交通运输 中-英
AFBI Open days to include a showcase of Biomass Crops for Resilient and Climate-Proof Farming

AFBI, Hillsborough will open it’s doors to the farming community on 18 and 19 June to showcase how the latest AFBI research underpins future sustainability of our industry. The focus of these ‘Farming for the Future’ open days will be on Dairy systems on the 18 and Beef and Sheep systems on the 19, exploring how to drive reductions in carbon, nitrogen and phosphorus, while enhancing biodiversity and optimising productivity. As climate change continues to challenge the agricultural sector, innovative solutions are needed to fortify farms against environmental shifts and market fluctuations. To help manage the challenge of climate change have you considered growing biomass crops? These offer a promising avenue not only for power and heat but for water quality protection, biodiversity, carbpon products, carbon sequestration, and livestock comfort and nutrition. Biomass Connect (a research, demonstration and information platform for biomass crops funded through the DESNZ Net Zero Innovation Portfolio) and AFBI Hillsborough are pleased to invite farmers attending the upcoming “Farming for the Future” Open Days on the 18 and 19 of June to visit, explore and understand different biomass crop options. A team of seasoned growers, breeders, researchers, and advisors will lead participants on guided tours of the pioneering Biomass Connect plots within the farmed estate. These interactive sessions will offer insights on cultivation, husbandry, and the merits of the various biomass crop options. Attendees will discover how biomass crops can contribute towards climate-resilient farming strategies, mitigating the impact of unpredictable weather patterns and market volatility. Moreover, they will learn how integrating these crops into agricultural enterprises may contribute towards financial stability and support environmentally beneficial farming practices. The Dairy Day on 18 June will have guided tours leaving every half hour from 10am to 2.30pm. The guided tours on the Beef and Sheep Day on the 19 June will leave every half hour from 1pm to 5.30pm. Each tour will last approximately 1.5 hours. These guided tours will have talks from AFBI scientists and other eminent speakers on topics such as soil health, grassland management, animal nutrition, genetics and management and slurry management strategies. The Biomass Connect tours will be integrated into these open days as follows: Tuesday 18 June - a Feature Tour of the Biomass Connect Platform will leave the courtyard at 1pm and 3pm to visit and discover a range of different Biomass Crops; experts will be on hand to inform and answer questions. Wednesday 19 June - at the end of the livestock tours you are invited to visit and view The Biomass Connect site and discover a range of different Biomass Crops; experts will be on hand to guide, inform and answer questions. Participants are encouraged to seize this unique opportunity to engage with experts, network with fellow farmers, and explore the tangible benefits of embracing biomass crops in their business enterprises. Visitors are advised that carparking for these events will be at Hillsborough Castle carpark, off the A1 dual carriageway. You will then be bused to the AFBI Hillsborough site. To find out more about these Biomass Connect tours and the Open Days in general, please register Notes to editors: AFBI’s Vision is “Scientific excellence delivering impactful and sustainable outcomes for society, economy and the natural environment”. AFBI’s Purpose is “To deliver trusted, independent research, statutory and surveillance science and expert advice that addresses local and global challenges, informs government policy and industry decision making, and underpins a sustainable agri-food industry and the natural and marine environments”. AFBI’s core areas: Leading improvements in the agri-food industry to enhance its sustainability. Protecting animal, plant and human health. Enhancing the natural and marine environment.

2025-06-07 邹思宇 农林 英-中
From data to action: The Land Story showcases global innovations in tackling land degradation and drought

Every year, over 100 million hectares of land are degraded through urbanization, deforestation, and overexploitation, trends accelerated by climate change. Land degradation now affects one in four people worldwide, while droughts become more frequent and severe. The results of the UNCCD 2022 national reporting process, encompassing data from 126 countries, provide a startling view into the rapid global loss of productive land. This data is publicly accessible on the UNCCD Data Dashboard, asserting the need for actionable information in combating land degradation. In response, the UNCCD, alongside WOCAT and the University of Bern's Centre for Development and Environment, are launching The Land Story, a new publication that shares insights and methodologies from 30 countries that contributed to improving land degradation and drought reporting. While far from exhaustive, the publication offers a unique view into diverse national approaches to challenges in data availability, reliability and resources. Country highlights from The Land Story: Panama: By convening over 30 cross-sectoral stakeholders in a workshop, Panama collaboratively selected land cover maps with local relevance, strengthening data accuracy over global datasets and boosting national confidence in degradation estimates. Bhutan: Leveraging both expert insight and on-the-ground data, Bhutan aligned land productivity mapping with the country's known realities. Maps and statistics on areas affected by forest fires, infestations, timber extraction and mining further enriched the accuracy of their reporting. Türkiye: Focusing on soil health, Türkiye developed 42 regionally specific conversion factors to estimate changes in soil organic carbon (SOC) from land cover transitions. This innovative approach improved precision in assessing SOC changes across the country. South Africa: With access to sex-disaggregated subnational data on social, economic and infrastructural factors, South Africa analyzed drought vulnerability trends since 2014. This data-driven approach has allowed for a nuanced understanding of drought drivers and facilitated tailored resilience plans across diverse regions. Upcoming events and dissemination The publication will debut further at UNCCD COP 16 in Riyadh, during a side event co-hosted by WOCAT and the UNCCD on December 6, 2024. Representatives from featured countries will discuss best practices and lessons learned, showcasing replicable methods for future reporting. An interactive plenary on national reporting, scheduled for December 4, 2024, will precede this event. For further insights, we invite you to explore the UNCCD Data Dashboard.

2025-06-07 邹思宇 农林 英-中
山东寿光10万吨BDO项目投产

近日，寿光市联盟石油化工有限公司投资6.5亿元打造的10万吨/年BDO项目，于近日成功产出第一批产品，正式宣告项目投产，这是寿光联盟石化转型发展历程中的重要里程碑。 该项目采用行业顶尖技术——英国Davy公司的顺酐酯化加氢工艺，与传统工艺相比，每吨产品的碳排放量锐减至原来的1/4，BDO产品纯度飙升至99.85%，远高于传统工艺99.5%的标准，不仅能直接远销欧盟市场，还能强势替代进口产品。 值得一提的是，该项目生产模式极具创新性，一套装置可同时产出BDO（1,4-丁二醇）、γ-丁内酯、四氢呋喃三种产品，实现资源高效利用。并且，企业已规划好下一步发展蓝图，计划新增DMS和PBS产品，进一步丰富产品线，实现一套装置灵活多产，持续增强产品市场竞争力。 据悉，作为2024年山东省重大实施类项目，该项目总投资33.5亿元，分两期建设。一期建设10万吨/年BDO生产装置，二期建设20万吨/年顺酐生产装置，6万吨/年PBAT/PBS可降解塑料生产装置，引进先进的顺酐酯化加氢技术，三废少能耗低，产品质量和装置智能化程度均达到国际先进水平。 寿光市联盟石油化工有限公司10万吨/年BDO项目的成功投产，预示着联盟化工正朝着绿色、高端、创新的方向大步迈进。

2025-06-04 孙玮 化工 中-英
张国清出席法国人工智能行动峰会并致辞（2025-02-11）

当地时间2025年2月10日，习近平主席特别代表、中共中央政治局委员、国务院副总理张国清在巴黎出席人工智能行动峰会并致辞。 张国清表示，人工智能已成为新一轮科技革命和产业变革的重要驱动力量。中国以高度负责的态度参与人工智能全球治理。2023年10月，习近平主席提出《全球人工智能治理倡议》，围绕“人工智能怎样发展与治理”的重大时代课题，提出了中国方案，贡献了中国智慧。面对人工智能发展的机遇和挑战，国际社会应携起手来，倡导智能向善，深化创新合作，强化包容普惠，完善全球治理。中国愿在人工智能领域与各国共推发展、共护安全、共享成果，共同构建人类命运共同体。欢迎各方来华出席上海2025世界人工智能大会。 来自30多个国家的国家元首、政府首脑或高级别代表以及国际组织负责人出席本次峰会，并共同发布《关于发展包容、可持续的人工智能造福人类与地球的声明》。 在法期间，法国总统马克龙会见张国清。张国清转达习近平主席亲切问候，表示中方愿同法方一道，落实好两国元首共识，推动中法关系在“新甲子”实现更大发展。马克龙感谢习近平主席派特别代表来法参会，表示法国坚持战略自主，愿同中方加强沟通合作，共促和平发展、共迎时代挑战。

2025-06-03 雷之敏 CATTI练笔 中-英
巴斯夫出售新疆库尔勒两家合资公司股份

近日，大家注意到，全球化工巨头巴斯夫在华业务布局出现新动态，其已正式完成对新疆库尔勒两家合资公司股份的出售交易。 此次被出售的两家合资公司分别为巴斯夫美克化工制造（新疆）有限公司与美克美欧化工（新疆）有限公司，接盘方为Verde Chemical Singapore Pte. Ltd.。据悉，该交易在获得相关部门批准后，于2025年4月21日尘埃落定。出于商业考量，双方约定不对外披露此次交易的具体财务细节。 对于此次股份出售，巴斯夫在此前给出了明确且直接的原因。作为巴斯夫1,4 - 丁二醇（BDO）全球战略的重要环节，巴斯夫对BDO及其下游产品的市场环境和产品碳足迹（PCF）进行了全面且深入的评估。评估结果显示，BDO价值链正面临愈发严峻的竞争压力，全球产能过剩问题日益凸显，这使得市场供需关系失衡，企业利润空间受到挤压。 同时，BDO及其下游产品如聚四氢呋喃在生产过程中存在显著问题。由于大量使用煤炭作为基础原料，且生产环节能耗极高，导致这些产品的产品碳足迹（PCF）居高不下。 在全球对环保和可持续发展关注度不断提升的当下，高碳足迹产品面临着市场准入、消费者偏好等多方面的挑战。在此背景下，巴斯夫选择出售在华这两家合资公司股份，或是在综合考量市场环境与自身战略后做出的决策，后续巴斯夫在华业务走向值得持续关注。

2025-06-03 王思元 化工 中-英
Changing seasons on Uranus tracked across 20 years by Hubble Space Telescope

An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex atmospheric changes on Uranus that are largely driven by the effects of the sun's radiation. Uranus, the seventh planet from the sun, is unique for its extreme axial tilt, with its equator and orbit making nearly at a right angle — likely the result of a collision with an Earth-size object long ago. This tilt causes the planet's poles to experience prolonged, dark winters and bright summers, leading to dramatic seasonal shifts, especially at the northern and southern poles. Despite these extreme traits, however, Uranus remains one of the least understood planets in our solar system, largely because it was only visited by a single spacecraft nearly 40 years ago, Voyager 2 — and that sole encounter coincided with an exceptional solar event, further complicating our understanding of the distant ice giant. Over the past two decades, a team led by astronomer Erich Karkoschka of the University of Arizona used the Space Telescope Imaging Spectrograph on the Hubble Space Telescope to track seasonal changes on Uranus. Because the ice giant takes just over 84 Earth years to complete one orbit around the sun, the researchers mainly got to observe the planet's northern spring as the sun moved from shining directly over the planet's equator to almost directly over its north pole by 2030. The series of Hubble images above, seen from left to right, reveal the south polar region darkening as it enters winter shadow, while the north polar region brightens as northern summer approaches, according to a NASA statement. Uranus's atmosphere is primarily composed of hydrogen and helium, with a small amount of methane, which gives the planet its characteristic blue-green hue by absorbing red light from the sun and reflecting blue light. From 2002 to 2022, Karkoschka and his colleagues observed the ice giant four times — in 2002, 2012, 2015 and 2022 — documenting a richer picture of the planet's atmospheric structure than was gathered by the single Voyager 2 flyby. The recent observations suggest complex atmospheric circulation patterns on Uranus during this period, with the data most sensitive to the methane distribution indicating a downwelling in the polar regions and upwelling in other areas, according to the NASA statement. Notably, scientists found that methane is not uniformly distributed across Uranus but is rather strongly depleted near its poles, with this depletion remaining consistent over the years. The observations also revealed changes in aerosol concentrations, allowing scientists to map out the planet's atmospheric structure. While methane depletion and aerosol patterns remained relatively stable in the middle and low latitudes over the observed two decades, the polar regions showed more dramatic shifts. Notably, aerosols near the north pole became brighter, especially in recent years as the planet approached its northern summer, according to the statement. These long-term observations have provided scientists with a deeper understanding of how the ice giant's atmosphere functions and reacts to changing sunlight. They can also "serve as a proxy for studying exoplanets of similar size and composition," the Hubble team said in the statement.

2025-06-03 王思元 航空 英-中
1st images of elusive auroras on Neptune revealed by James Webb Space Telescope

For the first time, astronomers have captured direct images of Neptune's elusive auroras. Scientists have long suspected that the distant ice giant hosts shimmering light displays, based on fleeting hints from the Voyager 2 probe's flyby and observations of similar activity on Jupiter, Saturn and Uranus. Capturing images of Neptune's auroras had remained out of reach until the James Webb Space Telescope (JWST or Webb) turned its powerful eye towards the icy planet. "Turns out, actually imaging the auroral activity on Neptune was only possible with Webb's near-infrared sensitivity," said Henrik Melin of Northumbria University, who conducted the research while at the University of Leicester, in a statement accompanying the photos. "It was so stunning to not just see the auroras, but the detail and clarity of the signature really shocked me." Even more significant is the unique nature of Neptune's aurora, which scientists say differs from those seen on Earth, Jupiter, and Saturn, where auroras are typically confined to the poles. This is because their magnetic fields are relatively well aligned with their rotation axes, guiding charged particles from the solar wind toward the polar regions. Neptune, on the other hand, has a highly tilted and offset magnetic field, which means its auroras appear at unexpected locations, such as the planet's mid latitudes. These observations were made possible by the James Webb Space Telescope's Near-Infrared Spectrograph (NIRSpec), an instrument that analyzes the light absorbed or emitted by celestial objects. By breaking down the different wavelenghts of this light, scientists can determine key physical properties, such as temperature, mass and chemical composition. In this case, NIRSpec captured detailed images of Neptune's ionosphere — the electrically charged layer of its upper atmosphere, similar to Earth's ionosphere, where auroras form. Excitingly, Webb's data revealed emissions of trihydrogen cation (H₃⁺), one of the most abundant ions in the universe. This discovery is significant because H₃⁺ plays a crucial role in planetary auroras, glowing in response to interactions between planets' atmospheres and charged particles from the solar wind. "H3+ has a been a clear signifier on all the gas giants — Jupiter, Saturn, and Uranus — of auroral activity, and we expected to see the same on Neptune as we investigated the planet over the years with the best ground-based facilities available," explained JWST scientist Heidi Hammel. "Only with a machine-like Webb have we finally gotten that confirmation." The team was also able to take a temperature reading of Neptune, something that hasn't been done since Voyager 2's flyby in August, 1989. "I was astonished [by the results]," Melin said. "Neptune's upper atmosphere has cooled by several hundreds of degrees [in that time]. In fact, the temperature in 2023 was just over half of that in 1989." The dip in planetary temperature may help explain why the aurora have been so difficult to view. This is because auroras occur when charged particles excite atmospheric gases, causing them to emit light. Higher temperatures generally mean more energetic particles and a higher rate of collisions, leading to brighter auroras. A substantially colder temperature would reduce the density of energetic ions, leading to weaker emissions that are harder to detect. Astronomers will continue to study Neptune using the JWST, hoping to gain a deeper understanding of our solar system's strangest planet. "As we look ahead and dream of future missions to Uranus and Neptune, we now know how important it will be to have instruments tuned to the wavelengths of infrared light to continue to study the auroras," added Leigh Fletcher of Leicester University, co-author on the paper. "This observatory has finally opened the window onto this last, previously hidden ionosphere of the giant planets."

2025-06-03 张晨苗 航空 英-中
Canada hypes 'foreign interference' claim ahead of election; trick serves to divert attention from tensions with US: expert

Chinese Foreign Ministry spokesperson Guo Jiakun China has never interfered in Canada's internal affairs, nor do we have any interest in doing so, Chinese Foreign Ministry Spokesperson once again emphasized on Tuesday, following a Canadian intelligence official's claim that countries such as China and India are likely to try to interfere in the upcoming Canadian election on April 28 and China is "highly likely" to use tools enabled by AI to interfere. Chinese observers told the Global Times the recurring narrative of "foreign interference in election" has been created to serve Canada's domestic agendas, and they described the ploy as "self-entertaining." "China is highly likely to use AI enabled tools to attempt to interfere with Canada's democratic process in this current election," Vanessa Lloyd, deputy director of operations at the Canadian Security Intelligence Service, claimed during a press conference on Monday, according to Reuters. Accusing others but using phrase such as "highly likely" with no certainty reveals the apparent guilty conscience of the Canadian official when making the allegation, Liu Dan, a researcher at the Center for Regional Country Studies at Guangdong University of Foreign Studies, told the Global Times. This is not the first time that Canada has deliberately created a narrative of "Chinese interference" in its elections. The approach is primarily a Conservative Party tactic to sow doubt over the legitimacy of Liberal Party victories, Liu said. With the so-called allegation, Liberal Party would be under pressure of domestic public opinion to continue the investigation over "interference in election" claim, the expert said, noting that although the so-called evidence has always been elusive or didn't exist, the hype can easily attract the attention and support of voters. On Tuesday's press briefing, Chinese Foreign Ministry spokesperson Guo Jiakun reemphasized that "China stays committed to the principle of non-interference in other countries' domestic affairs. China has never interfered in Canada's internal affairs, nor do we have any interest in doing so." New Canadian Prime Minister Mark Carney and his Conservative opponent kicked off their election campaigns on Sunday against the backdrop of a trade war and annexation threats from the Trump administration, according to AP. Carney announced there will be a five-week election campaign before the vote on 28 April, the report said. Liu said hyping foreign interference helps divert public attention from US-Canada tensions, mitigating the impact of strong nationalist sentiments on Canada's relations with the US, and it also allows the Canadian government to exploit the topic of foreign interference to justify its hardline policies towards China and garner support from voters. Carney on Sunday called a snap election for April 28, saying he needed a strong mandate to deal with the threat posed by US President Donald Trump, who "wants to break us so America can own us," according to Reuters. "The comments showed the extent to which relations between the US and Canada, two long-time allies and major trading partners, have deteriorated since Trump imposed tariffs on Canada and threatened to annex it as the 51st state," Reuters report said. The objective reality, which even the current Prime Minister of Canada acknowledges, is that the primary threat facing Canada comes from the US, which aims to turn Canada into its 51st state, against this backdrop, hyping "Chinese interference" and smearing China demonstrate the amateurishness and unprofessionalism of this Canadian intelligence official, Li Haidong, a professor at the China Foreign Affairs University, told the Global Times.

2025-06-03 张晨苗 时政 英-中
China drives strong recovery in Australian wine exports: report

CANBERRA, April 29 (Xinhua) -- Australian wine exports recorded a strong rebound in the 12 months to March 2025, driven by surging demand from China after the removal of tariffs on Australian bottled wine. According to the latest export report released on Tuesday by Wine Australia, the country's wine industry regulator, total Australian wine exports rose 41 percent in value to 2.64 billion Australian dollars, with volumes increasing 6 percent to 647 million liters. Notably, exports to the Chinese mainland soared to 96 million liters, valued at 1.03 billion Australian dollars, accounting for nearly 40 percent of Australia's total wine export value, the report said, adding the dramatic increase follows the elimination of tariffs at the end of March 2024, marking a full year of uninterrupted trade. Chinese consumers' strong preference for premium Australian wines played a key role in the recovery, it said, adding the average export value to China reached 10.65 Australian dollars per liter, the highest among Australia's top export destinations. Packaged wine shipments, particularly high-end glass-bottled products, accounted for 93 percent of the total export value to China, according to Wine Australia. Despite the impressive recovery in the Chinese market, Australian wine exports to the rest of the world declined, it said. Exports outside China fell 13 percent in value and 9 percent in volume, reflecting broader global challenges such as economic uncertainty, cost-of-living pressures, and evolving consumer preferences for lower alcohol consumption, the report said. Wine Australia emphasized that China has re-emerged as a critical growth market for premium wine exports, helping to stabilize the sector in an increasingly uncertain global environment.

2025-06-03 张琪 CATTI练笔 英-中
光伏胶膜龙头福斯特2024年净利润13亿元

近日，光伏胶膜龙头福斯特发布了其2024年财报。报告显示2024年，福斯特实现了营业收入1,914,742.43万元，归属于上市公司股东的净利润为130,755.95万元。 作为光伏封装材料领域的深耕者，福斯特已经在这个领域积累了近二十年的经验。其光伏胶膜产品在全球市场的占有率长期保持在50%左右。大幅领先于竞争对手。在光伏产业链中，福斯特更是极少数的单一龙头环节之一。 此外，福斯特也是光伏胶膜行业内率先在海外布局产能的企业。公司的首个海外生产基地位于泰国，于2018年正式投入使用。随后，公司于2022年启动了越南基地的建设，并在2024年开始逐步释放光伏胶膜产能。同时，泰国基地的二期扩产项目也在顺利推进中，这表明，尽管面临市场挑战，福斯特的海外光伏胶膜产能仍在持续扩张。 值得注意的是，福斯特2024年营收和净利润都是同比下降的，分别达到15.23%、29.33%。这一方面是由于光伏胶膜产品的单价随着原材料价格同步下跌，导致胶膜业务营业收入和净利润下降，另一方面，由于 2024 年度下游客户生产的组件以双玻结构为主，光伏背板产品需求量大幅下降，产品价格进一步下降，相关营收和净利润同比下降。 不过尽管如此，福斯特的光伏胶膜销售量在2024年仍实现了24.98%的同比增长

2025-06-03 张晨苗 化工 中-英
汕头湾海底隧道贯通

3月26日，在广东省汕头湾海底68米深处，随着“永平号”盾构机直径达14.57米的刀盘破岩而出，世界首座时速350公里单洞双线高铁隧道——汕头湾海底隧道成功贯通。 由中国铁路设计集团有限公司工程总承包的汕汕高铁连接广东省汕头市与汕尾市，全线控制性工程汕头湾海底隧道全长9781米。该隧道位于8度的高烈度地震区，穿越17条断层破碎带，还要承受海底近1兆帕的超高水压和强腐蚀性海水的双重压力，设计及施工难度极大。 隧道建设过程中，广东省铁投集团与中国铁路广州局集团深化合作，组织参建单位精心策划，多次邀请科研团队开展重大科研立项攻关，项目设计团队推动系列设计方案深化完善，成功破解了“高烈度地震＋密集活动断层＋海域超高水压＋高腐蚀海水＋极复杂地层”的多重影响。 汕头湾海底隧道创造了多项深海隧道建设纪录——世界首座时速350公里单洞双线高速铁路海底隧道、世界已贯通最大开挖直径铁路海底隧道、国内穿越活动断层最多的铁路海底隧道、国内开通水压最大的海底隧道。 汕头湾海底隧道的顺利贯通，为汕汕高铁全线如期开通运营打下了坚实基础。全线建成通车后，汕汕高铁将与在建的漳汕高铁连接，在珠三角、海西、长三角之间构筑起一条新南北向大能力客运通道，对沿线城市融入湾区、连接华东提供重要通道。

2025-06-03 王思元 交通运输 中-英

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