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以下内容为岭南师范学院学生最近一个月内的翻译实践成果

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. As I walked out onto the frozen Arctic water off Utqiagvik, Alaska, for the first time, I was mesmerized by the icescape. Piles of blue and white sea-ice rubble several feet high gave way to flat areas and then rubble again. The snow atop it, sometimes several feet deep, hides gaps among the blocks of sea ice, as I found out when one of my legs suddenly disappeared through the snow. As a polar climate scientist, I have focused on Arctic sea ice for over a decade. But spending time on the ice with people who rely on it for their way of life provides a different perspective. Local hunters run snowmobiles over the sea ice to reach the whales and seals they rely on for traditional food. They talked about how they know when the sea ice is safe to travel on, and how that's changing as global temperatures rise. They described worsening coastal erosion as the protective ice disappears earlier and forms later. On land, they're contending with thawing permafrost that causes roads and buildings to sink. Their experiences echo the data I have been working with from satellites and climate models. Most winters, sea ice covers the entire surface of the Arctic Ocean basin, even extending into the northern North Atlantic and North Pacific. Even in late summer, sea ice used to cover about half the Arctic Ocean. However, the late summer ice has declined by about 50% since routine satellite observations began in 1978. This decline of summer sea ice area has a multitude of effects, from changing local ecosystems to allowing more shipping through the Arctic Ocean. It also enhances global warming, because the loss of the reflective white sea-ice surface leaves dark open water that absorbs the sun's radiation, adding more heat to the system. Along the Alaskan coast, the decline of the Arctic sea ice cover is most apparent in the longer ice-free season. Sea ice is forming later in the fall now than it used to and breaking up earlier in the spring. For people who live there, this means shorter seasons when the ice is safe to travel over, and less time when sea ice is present to protect the coastline from ocean waves. Open water increases the risk of coastal erosion, particularly when accompanied by thawing permafrost, stronger storms and rising sea level. All are driven by greenhouse gas emissions from human activities, particularly burning fossil fuels. In some places along the Alaskan coast, erosion threatens roads, houses and entire communities. Research has shown that coastal erosion in Alaska has accelerated over recent decades. More weeks of open water also affect animals. Polar bears spend the summer on land but require sea ice to hunt their preferred food, seals. The longer the sea ice stays away from land, the longer polar bears are deprived of this high-fat food, which can ultimately threaten the bears' survival. Across the Arctic, satellite data has captured how sea ice has been thinning and getting younger. As recently as the late 1970s, about 60% of the Arctic sea ice was at least 1 year old and generally thicker than younger ice. Today, the amount of ice more than a year old is down to about 35%. Local residents experience that change in another way: Multiyear sea ice is much less salty than new sea ice. Hunters used to cut blocks of multiyear sea ice to get drinking water, but that older ice has become harder to find. Sea ice forms from ocean water, which is salty. As the water freezes, the salt collects in between the ice crystals. Because the higher the salt content, the lower the freezing point of the water, these enclosures in the sea ice contain salty liquid water, called brine. This brine drains out of the sea ice over time through small channels in the ice. Thus, multiyear sea ice, which has survived at least one melt cycle, is less salty than first-year sea ice. Since the coastal landfast sea ice around Utqiagvik no longer contains much multiyear sea ice, if any, the hunters now have to take a block of lake ice or simply gallon jugs of water with them if they plan to stay on the ice for several days. As long as greenhouse gas emissions continue to increase, Arctic sea ice will generally continue to decline, studies show. One study calculated that, statistically, the average carbon dioxide emissions per person per year in the U.S. led to the disappearance of an area of summer sea ice the size of a large hotel room – 430 to 538 square feet (40 to 50 square meters) each year. Today, when Arctic sea ice is at its minimum extent, at the end of summer, it covers only about half what it covered in 1979 at that time of the year. The Arctic still has around 1.8 million square miles (4.6 million square kilometers) of sea ice that survives the summer melt, approximately equal to the area of the entire European Union. Climate models show the Arctic could be ice-free at the end of summer within decades, depending on how quickly humans rein in greenhouse gas emissions. While a win for accessibility of shipping routes through the Arctic in summer, studies suggest that the large reduction of sea ice would bring profound ecological changes in the Arctic Ocean, as more light and heat enter the ocean surface. The warmer the surface ocean water is, the longer it will take for the ocean to cool back down to the freezing point in the fall, delaying the formation of new sea ice. Arctic sea ice will continue to form in winter for the next several decades. The months of no sunlight mean it will continue to get very cold in winter, allowing sea ice to form. Climate models have estimated that it would take extremely high atmospheric carbon dioxide concentrations to warm the climate enough for no sea ice to form in the winter in the Arctic Ocean – close to 2,000 parts per million, more than 4.5 times our current level. However, winter sea ice will cover less area as the Earth warms. For people living along the Arctic Ocean coast in Alaska, winter ice will still return for now. If global greenhouse gas emissions are not reduced, though, climate models show that even winter sea ice along the Alaskan coast could disappear by the end of the 21st century. This article is republished from The Conversation under a Creative Commons license. Read the original article.

2025-12-12 余金玲 航空 英-中

机车车辆整修有序推进 筑牢秋冬运输安全防线 连日来,全路机辆系统紧盯走行部、制动系统、高压系统、油电防火等质量安全关键,结合运用实际情况,针对性开展机车车辆秋季整修,全面恢复设备良好质量状态,同步做好冬季防寒准备,当前各项整修任务即将全面完成。 今年暑运期间,客货运量均创历史同期新高。暑运结束后,中国国家铁路集团有限公司机辆部及时发布机车车辆秋季整修工作通知,明确整修标准、整修重点及组织实施要求,组织各铁路局集团公司统筹推进机车、动集动力车与动客车整修工作,严格整修过程管控,定期掌握整修进度和处理的典型故障情况,加强整修计划和标准落实情况的监督检查,对整修后的运用质量进行跟踪分析,专题组织进京、进沪、进穗“三进”客车和动力集中动车组整修质量鉴定抽查。 各铁路局集团公司结合实际,细化整修方案、编制整修计划,强化过程卡控和结果验收,实行“记名检、记名修”,确保整修工作取得实效。中国铁路武汉局集团有限公司武昌南机务段对配属机车进行全面“把脉问诊”,精准消除机车质量隐患;中国铁路成都局集团有限公司重庆车辆段制订“一车型一方案”整修计划,分车型、分专业、分部件开展动客车整修工作;中国铁路乌鲁木齐局集团有限公司库尔勒机务段成立专项整修小组,对配属的机车进行专项整修,不断提升机车设备质量,为疆煤外运提供坚实可靠的运力保障;中国铁路北京局集团有限公司结合季节性特点,细化动车组防寒整备项点,确保机车冬季“温暖上线”。(来源:中国国家铁路集团有限公司官网)

2025-12-12 宁晓敏 交通运输 中-英

When the gibbous moon hits your eye like a big glowing orb ... you know you're in the Andes Mountains. This full moon was recently captured by Petr Horálek of NOIRLab in the Atacama Desert in Chile, where important astronomical observatories like the Very Large Telescope (VLT) and Atacama Large Millimeter/submillimeter Array (ALMA) reside. A gibbous moon, like the one captured here, refers to a phase in which the moon is more than half illuminated but not yet full, or just after full, when it's starting to wane. This phase is important because it represents one of the moon's brightest periods, offering extended natural light at night. For astronomers and stargazers, the gibbous phase provides excellent visibility for spotting lunar craters and highlands, while for ancient peoples and modern observers alike, it has long symbolized growth, transition and the fullness of cycles. This photo was taken at Cerro Pachón, a mountain in Chile's Atacama Desert. Thanks to the excess glow from the gibbous phase, moongazers can see dark splotches, or maria, across the surface of our moon. These maria were created when the moon had active volcanoes. Two very specific and important maria can be seen in this image: Mare Tranquillitatis (above left of center) and Mare Serenitatis (left of the moon's center). Both of these sites are part of humanity's rich legacy of visiting the moon. You can learn more about moon landings and other features of the moon.

2025-12-11 欧晓霖 航空 英-中

An aerial drone photo taken on Dec. 25, 2024 shows a view of the standard-gage yard of Horgos railway port in Horgos, northwest China's Xinjiang Uygur Autonomous Region. (Xinhua/Chen Shuo) Horgos Port in northwest China's Xinjiang Uygur Autonomous Region has become China's largest land port for commercial vehicle exports, having shipped more than 300,000 units so far this year, Urumqi Customs said on Friday. In the first three quarters of this year, Xinjiang's foreign trade value reached 393.14 billion yuan (about 55.4 billion U.S. dollars) -- a year-on-year surge of 22.1 percent, reflecting a steady upward growth trend, the customs office said. The port's success is part of a broader trend where private enterprises in Xinjiang have significantly boosted their activity, now accounting for 98 percent of foreign trade growth, with 3,629 such firms actively engaged, said Li Qinghua, vice commissioner of Urumqi Customs. Notable export sectors include household appliances, lighting equipment, and vehicles and auto parts -- all reporting strong performance, Li added. Xinjiang's trade with Belt and Road Initiative partner countries surged 14.2 percent year on year to 341.49 billion yuan in the first three quarters, with Central Asian nations remaining its top trading partners, accounting for 215.73 billion yuan collectively. Li emphasized that future efforts will focus on establishing the core Silk Road Economic Belt area, enhancing regulatory efficiency, and empowering enterprises to drive high-quality foreign trade development.

2025-12-11 林小慧 时政 英-中

Chinese Foreign Ministry Spokesperson Lin Jian A spokesperson for the Chinese Foreign Ministry on Friday condemned the US' reported approval of arms sale to China's Taiwan region, and called on Washington to stop abetting and aiding "Taiwan independence" separatist forces. It's reported that according to the Pentagon, US Department of State approved the sale to Taiwan of non-standard components and repair support for F-16, C-130, and Indigenous Defense Fighter aircraft for an estimated total cost of $330 million, marking the first such transaction in President Donald Trump's second term. Asked by the Global Times about China's comment at a regular press briefing on Friday, Lin Jian, the spokesperson, said that the US' arms sale to China's Taiwan region grossly violates the one-China principle and the three China-US joint communiqués, especially the August 17 Communiqué of 1982, infringes on China's sovereignty and security interests, contravenes international law, and sends a gravely wrong signal to "Taiwan independence" separatist forces. China deplores and opposes that. Lin stressed that the Taiwan question is at the core of China's core interests, and is the first red line that cannot be crossed in China-US relations. China urges the US to abide by the one-China principle and the three China-US joint communiqués, act on its leaders' commitment on Taiwan-related issues, stop abetting and aiding separatist forces' attempt to seek "Taiwan independence" through military buildup, and take concrete actions in the interests of China-US relations and cross-Strait peace and stability, the spokesperson said. Citing the Pentagon, Reuters claimed that the US' proposed sale would improve the recipient's capability to meet current and future threats by maintaining the operational readiness of the recipient's fleet of F-16, C-130, and other aircraft. "China will do what is necessary to firmly defend China's sovereignty, security and territorial integrity," Lin told the press briefing on Friday. Global Times

2025-12-11 林小慧 时政 英-中

Screenshot of a video by Yuyuan Tantian, a social media account affiliated with state broadcaster China Central Television on November 12, 2025. On November 11 local time, California Governor Gavin Newsom appeared at the 30th UN Climate Change Conference (COP30) and frequently referenced China during the event, according to Yuyuan Tantian, a social media account affiliated with state broadcaster China Central Television. In an interview with Yuyuan Tantian, Newsom said China is “at another scale” in tackling climate change. They (China) see the economic opportunity of changing the way they produce and consume energy and they’re doing it at scale, says Newsom. He also said China is very strategic about it, according to the video published by Yuyuan Tantian. China produces high quality goods and has partnerships sourcing around the globe and is driving technology, said the governor, according to the video by Yuyuan Tantian. He also mentioned in the video that China has some of the highest quality electric vehicles in the world and are building market share, dominating in batteries, and increasingly in software and technology. According to a post by CGTN Frontline on November 12 via its social media account, Newsom praised China’s competitiveness in clean technology, saying the country “deserves a lot of credit for not turning their back on climate change and climate policy.” At an investors’ summit in São Paulo earlier in the week, Newsom described the absence of federal climate leadership as “jaw-dropping,” noting that US inaction risks ceding the booming clean energy market to China, Carbon Herald reported on November 11. Global Times

2025-12-11 林小慧 时政 英-中

编辑感言 习近平总书记强调:“时代为我国文艺繁荣发展提供了前所未有的广阔舞台。推动社会主义文艺繁荣发展、建设社会主义文化强国,广大文艺工作者义不容辞、重任在肩、大有作为。” 岁末又至,铺展2021年的宏阔画卷,处处闪现着动人的细节:从三星堆考古新发现引发关注,到中华优秀传统文化闪耀舞台;从主旋律影视剧受到年轻观众欢迎,到红色文旅持续升温;从博物馆、图书馆不断提升公共文化服务水平,到文化艺术为乡村大地增添缤纷色彩……在时代发展中感受文艺脉动,文化的滋润让精神力量始终充盈。 这一年,红色成为影视领域的高频词。《觉醒年代》掀起年轻人追剧热潮,《山海情》“出海”获得众多点赞,《长津湖》刷新中国电影票房纪录,人们在影视作品中感悟家国情怀、获取精神力量。 这一年,《千里江山图》演绎成舞蹈诗剧,苏绣版画等非遗技艺展现生机,国潮文创、古风服饰等成为时尚……中华优秀传统文化日益融入生活、走进日常,展现出“火”起来的灵动模样。 这一年,演出行业在疫情防控常态化下蓬勃发展。话剧、戏曲、舞剧等领域,新创作品大量涌现,深耕内容提升质量。5G、大数据、人工智能等新技术加快应用,创新展演形式。坚守艺术理想,追求德艺双馨成为业界共识,为文艺工作者守正创新指明方向。 这一年,“实施文化产业数字化战略”正式写入“十四五”规划纲要。新技术、新手段,持续激发创意灵感。出版、文旅等传统业态借助数字化技术实现转型升级,直播、短视频等以数字技术和互联网为依托形成的新型文化产业蓬勃兴起,文化场馆打破物理边界,云观展等新形态逐渐成为常态。 年轮刻录下感动、振奋,满载美好期待。广大文艺工作者将持续从时代之变、中国之进、人民之呼中提炼主题、萃取题材,展现中华历史之美、山河之美、文化之美。 《觉醒年代》导演张永新—— 真善美是最有力量的 《觉醒年代》开播当天,我们剧组每个人都热泪盈眶,幸福感溢于言表。这一年来,这部剧收获许多关注与肯定。回想起无数个昼夜连轴转、歇人不歇工的日子,大家怀着敬畏之心,用集体的心血、智慧,以及澎湃的热情,共同浇灌出了这朵花。 “拍片就像双手捧水,务必十指并紧。否则,这里漏一点那里漏一点,作品的质量就糟啦。”谢晋导演说过的话,也是我的创作信念。 一部剧的成功涉及服化道、摄录美等诸多工程,这是一场长考,考量着整个团队的韧劲,丝毫不可懈怠。比如陈独秀与蔡元培家中不同样式的水杯;背景中一晃而过的群众演员,都有详细的人物设定……聚沙成塔、集腋成裘,影像的真实感也就扑面而来。 整部剧从编剧创作到考证推敲、再到最终实现的过程历经6年。如此长的创作周期,在今天的影视行业里并不多见。 影视是讲故事的艺术,真实是创作的第一要义。悬浮、虚构、不接地气,绝不可取,真人、真情、真故事,才能做出真正让观众喜欢的作品。从业20余年,我始终相信,真善美是最有力量的,假恶丑会被摒弃和鞭挞。特别是今年以来,国家出台了一系列政策,创作要正本清源、守正创新已经成为业内共识,我相信这也将成为今后创作的常态。 近年来,主旋律影视剧越来越受到欢迎。今天的观众特别是年轻人,他们的爱国之心与剧中所描绘的那一代人是同频共振的。 令人欣喜的是,许多主旋律影视剧在海外也收获了好的反响,可见追求美好与善良的情感是人类共通的需求。讲好中国的故事,就是要讲好人的故事,讲好中国人大爱与大美的故事,反映出时代的精气神。中国影视走出去的过程,关键就是要用朴素而平实的视角,堂堂正正讲好中国故事,既不仰视、也不俯视,既不妄自菲薄、也不沾沾自喜,让全世界看到真实立体全面的中国。 这是影视工作者应当秉持的创作精神,也是我将一直努力奔赴的方向。 (本报记者陈圆圆采访整理) 中国东方歌舞团编导周莉亚、韩真—— 唤起观众内心的情感共鸣 前不久,我们围绕《千里江山图》创排的舞蹈诗剧《只此青绿》完成了首轮全国巡演。创作这部作品,源自2017年在故宫观赏《千里江山图》时感受到的震撼。真正开始创作,我们才意识到难度之大超乎想象。 构思剧本时,我们和编剧坐了3天,也没想出从何入手。于是我们买来宋代诗歌、宋朝美学等方面的书籍研读,去故宫博物院了解文物修复,请非遗传承人担任顾问……了解得越深入,我们对传统文化的敬畏心就越重,创作就越要一丝不苟。 我们希望作品体现静观、纵观和宏观。静观就是全剧以静为出发点,用充分留白给予观众思考和想象的空间;纵观就是要展现历史的纵深感;宏观就是表达跨越千年的文脉传承,礼赞中华文化。有观众说,看到舞台上一轮明月朗照,展卷人与画作者目光交汇,便会感到触动。跨越千年,观众被剧中人感动时,其实唤起的是他们内心深处的情感共鸣,是刻在骨子里的对传统文化的热爱。 无论过去、现在还是未来,中华优秀传统文化总能触动我们,让我们在创作中充满激情。好的艺术作品对观众而言应该是“浅入深出”的。如果观众看完后能产生自豪感,调动起兴趣与好奇,从而愿意进一步了解传统文化、了解历史,我们的目的就达到了。 每一次创作都是艰难的。不管什么题材,选择了就要静下心来好好去做。作为创作者,我们希望不断突破自己,给观众和舞台带来更多新意,尽管这样做可能面临失败的风险,但我们也义无反顾。每接触一个新领域、挖掘一个新题材,都像在自己面前打开一扇门,我们先要走进去,洗掉之前的习惯,让自己脱胎换骨,然后才能指导演员。 明年,《只此青绿》预计还将继续巡演,我们也将继续打磨作品,让它以更好的面貌展现在大家面前。演出的步伐不停,我们的创作也不会止步。 (本报记者曹雪盟采访整理) 上海美术电影制片厂厂长速达—— 动画修复是致敬更是传承 1983年,上海美术电影制片厂第三部彩色动画长片、中国第三部彩色动画长片诞生,这就是《天书奇谭》。时隔38年,《天书奇谭4K纪念版》以崭新面貌走上了大银幕。 上海美术电影制片厂出品的动画片,是不少70后、80后的童年记忆。我10多岁时在电视上看过这部动画,记得有个画面是主角吃饼,吃着吃着套到头上,当时觉得太有趣了。 2018年,我们启动超高清画面修复及声音修复工作,“翻新”这一胶片时代的经典动画片。修复过程并不容易。首先需对原胶片进行整理,通过超声波水洗清洁,再扫描至硬盘;然后进入颜色校正、逐帧修复、声音扫描及修复阶段;最后进行声画合成。团队遵照“修旧如旧”原则,对影片进行去噪、去划痕、色彩增强等处理,提升清晰度的同时,最大限度地保留了原始动画的笔触和颗粒感。 《天书奇谭》是国产动画的代表作,它告诉大家,有趣是动画片的灵魂和生命。从专业角度来说,《天书奇谭》借鉴了中华传统文化中的绘画、雕塑、戏曲等艺术元素,比如片中很多角色形象来自戏曲造型。现在的动画往往依赖真人动作捕捉来设计人物动作,但在《天书奇谭》中,可以看到很多动画自身特性的体现。这些特质对当下的创作者而言是很好的学习教材。 数字技术使影片焕发出全新生命力。在我看来,修复的意义不仅在于重现,也是对过往创作的回顾,更是对当下动画创作的启迪。我们今天看动画,要看得懂艺术家创作动画的出发点是什么、本心是什么。艺术不是看着大数据创作,数据都是以往的东西;艺术是引领,创作者要坚持自己的艺术高度。 《天书奇谭》原片89分钟,此次修复版本100分钟,片尾加了幕后特辑,展现了修复过程和对老一辈动画艺术家们的采访,这是一种致敬,更是传承。上海美术电影制片厂2022年预计还将推出3部作品,其中动画短片集《中国奇谭》集结10名年轻导演,用不同的艺术方式来讲述中华优秀传统文化的故事,这也是一份薪火相传。 这,是我们应有的坚守。 (本报记者曹玲娟采访整理) 科普公众号星球研究所创始人耿华军—— 把大美中国讲给更多人听 即将过去的这一年,我和同事们见证了不少爆款作品的诞生:《100年,重塑山河》《报告地球,这里是中国空间站》《这里是中国2》……这也是星球研究所创立以来始终专注和努力的方向——从地理的视角讲述脚下的土地,向大家普及硬核知识,传递中国之美。 互联网时代,做科普,尤其是地理领域的科普并不容易,我们要和太多分散注意力的内容一起竞争。如何吸引用户?我们选择降低阅读门槛,提高阅读收益。首先,内容要相对通俗,用普通人能读懂而不是太过专业艰深的话来拆解知识;其次,提供赏心悦目的视觉体验,不管是图片还是图解,让读者一眼就能感受到极致的冲击力;再次,作品传递的立意和价值观也非常重要,希望大家能感受到国家的发展和变化,引发思考。当然,科普的通俗易懂和严谨准确很难兼得,我们在一次次碰撞中不断摸索。每篇科普文章都会由七八个人的团队,从查阅文献到确定框架,再到图表设计、内外审把关,投入一两个月的时间细细打磨,对于内容的调整经常会持续到推送前的最后一刻。社交媒体上,粉丝的留言也是我们接收阅读反馈、持续改进优化的重要途径。 同时,我们不断尝试前沿的技术手段。作为新媒体时代的内容生产者,我觉得数字技术对于内容的生产升级起到非常重要的作用,在视觉化呈现、科普传播等方面打开了更为广阔的想象空间。技术日新月异,未来我们会继续拥抱新技术,这是不可或缺的,也是大势所趋。 5年多来,星球研究所的团队从一个人拓展到60多人,选题从江河山川延伸到超级工程、城市风情、宇宙星辰,产品类型从文章扩展到视频、图书,提供愈发多元的科普体验。我和星球研究所一起成长,现在既是创作者,也是团队的管理者,但我更希望将自己定义为地理爱好者——热爱星球,热爱人类。这种热爱驱动着我,持续去做科普这件有意思又有意义的事,和大家一道认识大美中国。 2022年就要来了,我期待更多志同道合的人加入团队,期待更多人能通过星球研究所这双“眼睛”观察和了解中国。我也希望自己有时间出去走一走,多看看祖国的锦绣山河。 (本报记者管璇悦采访整理) 三星堆博物馆副馆长朱亚蓉—— 打造没有围墙的博物馆 对我而言,2021年是特别忙碌充实的一年。今年我们完成了三星堆博物馆开放式文物修复馆的建设,实施了青铜馆陈列提升改造,确定了新馆设计方案。这些工作对于提升三星堆博物馆的陈列展览品质、文物保护利用水平至关重要。 今年启动的三星堆国家文物保护利用示范区创建工作,将成为未来几年我们各项工作的抓手。三星堆国家文物保护利用示范区以建设世界一流博物馆、世界级文化遗址公园、世界知名旅游目的地为目标。其中,三星堆博物馆新馆建设是核心项目,建筑面积达5.5万平方米,建成后将大大提升博物馆的接待服务能力和文化传播能力。 今年,三星堆考古发掘进行了现场直播,公众尤其是年轻人对文博的热情空前高涨。三星堆博物馆今年以来的游客人数达到150多万人次,是去年的5倍。博物馆是公众学习的课堂,也是深受喜爱的打卡地。游客不仅为文物所蕴含的深厚文化内涵和精美独特的造型艺术所震撼,也对博物馆的陈列展览、接待服务、文创产品、配套设施等提出了更高的需求。 现在,越来越多年轻人愿意走进博物馆,学习历史、了解文化,他们乐于互动参与,也愿意表达,对文化衍生品有丰富的需求。这些都为博物馆进一步提升完善提供了方向,督促我们守正创新、砥砺前行,提供高质量的公共文化服务。 理想的博物馆是没有围墙的。作为文化传播机构,为公众提供更多更优质的文化服务,是博物馆的发展方向和重要使命。我们要顺应时代要求,坚持以人民为中心的创作导向,在观念上转变、方法上创新、内容上升级,不断提高博物馆文化传播的辐射力、感染力和生命力。通过不懈努力,进一步提升博物馆的社会服务水平和效能,让博物馆中的文物活起来,让文物的价值内涵在现代社会中得以更充分地体现。 (本报记者智春丽采访整理) 《 人民日报 》( 2021年12月29日 11 版)

2025-12-11 黄舒茵 时政 中-英

Thanks to the European Space Agency (ESA) spacecraft XMM-Newton, astronomers have seen a powerful explosion of plasma erupting from a distant star for the first time. We have seen (and felt) plenty of these coronal mass ejections (CMEs) from the sun, but even though we have long thought other stars expel such powerful outflows of superheated gas and magnetic field, astronomers had never before spotted them in any convincing way. This first extra-solar CME, which erupted from a red dwarf star, wasn't any run-of-the-mill stellar blast either. This CME was dense enough and carried enough energy to strip away the atmosphere of any closely orbiting planet, with the ejected material traveling at 5.4 million miles per hour (2,400 kilometers per second). That speed, around 3,500 times as fast as a Lockheed Martin F-16 jet fighter, is something that is only observed in around 1 in 2,000 CMEs from our sun. The atmosphere-stripping potential of this outburst means the observation of this CME could help astronomers better refine which extrasolar planets, or exoplanets, orbiting distant stars are capable of supporting life. "Astronomers have wanted to spot a CME on another star for decades," team member Joe Callingham of the Netherlands Institute for Radio Astronomy (ASTRON) said in a statement. "Previous findings have inferred that they exist, or hinted at their presence, but haven’t actually confirmed that material has definitively escaped out into space. We’ve now managed to do this for the first time." The team's research was published on Wednesday (Nov. 12) in the journal Nature. The discovery of this extra-solar CME was aided by the Low-Frequency Array (LOFAR) radio telescope, which is capable of detecting radio signals that are created by CMEs when they ripple through the outer layers of stars and emerge into interplanetary space. This creates a shock wave and an associated telltale burst of light in the radio wave region of the electromagnetic spectrum. "This kind of radio signal just wouldn’t exist unless material had completely left the star’s bubble of powerful magnetism," Callingham said. "In other words, it's caused by a CME." This extra-solar CME was first spotted in data from LOFAR thanks to a new data processing technique. XMM-Newton was then used to determine the temperature of the star that created it, its rotational speed, and its brightness in X-ray light. This revealed that this red dwarf, located around 130 light-years away, has around half the mass of the sun, but rotates around 20 times faster than our star and has a magnetic field around 300 times more powerful than the solar magnetic field. "We needed the sensitivity and frequency of LOFAR to detect the radio waves," team member David Konijn, a PhD student at ASTRON, explained. "And without XMM-Newton, we wouldn’t have been able to determine the CME’s motion or put it in a solar context, both crucial for proving what we’d found. Neither telescope alone would have been enough – we needed both." This research could also help us better understand the CMEs launched by the sun and how they drive space weather around Earth. "XMM-Newton is now helping us discover how CMEs vary by star, something that’s not only interesting in our study of stars and our sun, but also our hunt for habitable worlds around other stars," said Erik Kuulkers, an ESA XMM-Newton Project Scientist. "It also demonstrates the immense power of collaboration, which underpins all successful science. The discovery was a true team effort, and resolves the decades-long search for CMEs beyond the sun." The fact that the CME was fast and dense enough to strip away a planetary atmosphere also adds additional information to the criteria that define what a habitable planet is. "This work opens up a new observational frontier for studying and understanding eruptions and space weather around other stars," Henrik Eklund, an ESA at the European Space Research and Technology Centre (ESTEC) in Noordwijk, The Netherlands, said. "We're no longer limited to extrapolating our understanding of the sun's CMEs to other stars. It seems that intense space weather may be even more extreme around smaller stars – the primary hosts of potentially habitable exoplanets. This has important implications for how these planets keep hold of their atmospheres and possibly remain habitable over time." Currently, to be considered habitable, a planet has to sit in the zone around its star that is neither too hot nor too cold to support liquid water, known as the habitable or "Goldilocks" zone. But, if the star at the heart of that zone is particularly active and is throwing out violent and frequent CMEs, not even a stable orbit in the Goldilocks zone will help it sustain an atmosphere, and thus the conditions needed for life to prosper. That is a significant discovery because red dwarf stars like this one are the most common stars in the Milky Way. Thus, more of these stars than was previously believed may be stripping their orbiting planets of their atmospheres. Correction 11/12: The star is located around 130 light-years away, not 40 light-years away, and the estimated speed of the CME is only seen in 1 out of 2000 CMEs, not in 1 out of 20. This article has been updated to reflect that.

2025-12-10 黎扬静 航空 英-中

Chinese Foreign Minister Wang Yi on Tuesday called on China and Canada to properly address each other's legitimate concerns to promote the healthy, stable and sustainable development of China-Canada relations. Wang, also a member of the Political Bureau of the Communist Party of China Central Committee, made the appeal in a phone conversation with Canadian Foreign Minister Anita Anand, at the request of the Canadian side. Wang said that not long ago, President Xi Jinping and Prime Minister Mark Carney held a pivotal meeting in Gyeongju, South Korea. The two sides reached important consensus and provided strategic guidance on improving and developing China-Canada relations, a sign that China-Canada relations have been brought back onto the right track for growth after seven years of setbacks. He depicted it at the top of the agenda for bilateral relations to follow through on the consensus reached by the two leaders. China is ready to strengthen communication with Canada and take effective steps to accelerate the resumption of exchanges and cooperation in various fields, so as to consolidate the momentum for growing bilateral relations in a practical and constructive manner, Wang said. Diplomatic and commercial departments of both nations should enhance coordination, address each other's legitimate concerns in the spirit of mutual understanding, accommodation, and friendly consultations, so as to promote the healthy, steady and sustainable development of China-Canada relations, he said. Anand, for her part, said that just over a week ago, the two leaders held a candid, in-depth and productive meeting in Gyeongju, marking an important turning point in Canada-China relations. Canada is willing to seize the opportunity to enhance dialogue and communication with China at all levels and across various fields, deepen mutual understanding and trust, revitalize their strategic partnership, and achieve more mutually beneficial outcomes in areas such as trade, consular affairs, drug control and energy, in a joint effort to follow through on the important consensus reached by the two leaders, she said.

2025-12-10 余静雯 时政 英-中

10月26日至27日,首届中国(国际)机器人辩论大赛在北京举行初赛。本次大赛汇聚了来自清华大学、武汉大学、湖北大学、人大附中北京经济技术开发区学校等院校,以及松延动力、加速进化等企业的共14支赛队,上演了一场场精彩纷呈的“人机思辨”对决。 大赛首创“人机协同—人机对抗——机机对决”的三层进阶赛制。初赛阶段,各队由人类辩手与自家机器人搭档出战,围绕一系列兼具前瞻性与思辨性的科技伦理与社会议题展开激烈辩论。辩题涵盖“大学生应用AI学习的利弊”“脑机接口技术的社会影响”以及“平台经济监管与自由竞争”等数字时代的核心争议。赛场上,机器人辩手或对答如流,或经过“深思熟虑”后娓娓道来,展现了人工智能在复杂逻辑构建和语言表达上的能力。评委团则从逻辑性、语言表现力、多模态交互、技能展示和临场应变五个维度进行综合评判。 “我们用了2个月时间,通过语义训练、对话算法的持续迭代以及引入关键词交互策略等方法,系统性地提升机器人的对话表现。” 宁夏大学新闻传播学院副院长朱俊松在分享参赛准备时介绍,这一过程既充满了技术攻关的艰辛,也体现了人机协同探索的乐趣。 中国技术市场协会荣誉会长陶元兴表示,本届大赛是尖端技术的“试金石”,考验的是机器对自然语言的深度理解、知识整合与逻辑构建能力,目标是打磨人工智能领域“皇冠上的明珠”。 在科普与产业推广层面,主办方人工智能与传播专业委员会理事长赵云泽教授认为,大赛是一场“全民性的科技启蒙运动”,既能激发社会对科技的热情,也有助于汇聚产业机遇、吸引国际人才,助力我国抢占全球人工智能产业制高点。 随着初赛落幕,晋级队伍将继续在复赛和决赛中,向着更高阶的“人机对抗”与纯“机机对决”挑战进发,持续探索智能体认知与交互能力的边界。

2025-12-10 李满 教育资讯 中-英

The northern lights could still be visible tonight (Nov. 13-14) as lingering effects from recent solar eruptions continue to ripple through Earth's magnetic field. Minor (G1) to strong (G3) geomagnetic storm conditions are still possible throughout the evening hours, according to NOAA's Space Weather Prediction Center. A G3 storm watch remains in effect today with a gradual return to quieter space weather expected by Friday, according to the U.K. Met Office While geomagnetic activity is slowly subsiding, the current forecast still shows a good chance of auroras in parts of the northern U.S. Based on the latest NOAA aurora forecast map, the following 10 U.S. states appear fully or partially above the aurora view line: Alaska Washington Idaho Montana North Dakota South Dakota Minnesota Wisconsin Michigan Maine As always, keep in mind that auroras are not guaranteed. Sometimes they appear farther south than forecast and sometimes not at all. Many conditions have to align for a good display, including cloud cover, light pollution and the strength of the geomagnetic disturbance. The northern lights could be visible across 10 U.S. states (or maybe more) tonight (Nov. 13-14) as soon as it gets dark, so it's worth keeping an eye on the sky throughout the evening, especially in areas with clear, dark skies. According to NOAA's 3-day forecast, geomagnetic storm activity is expected to be highest earlier on in the night, with the best chances of auroras during the following key times: 4 p.m. - 7 p.m. EST (2100-0000 GMT): Strong G3 storm levels possible 7 p.m. - 10 p.m. EST (0000-0300 GMT): Minor G1 storm levels possible If you live in one of the 10 U.S. states forecasted to catch a glimpse of the northern lights tonight, there are a few things you can do to give yourself the best chance of seeing them. Find a north-facing vantage point with a clear view of the horizon as far from light pollution as possible. Use your phone camera to scan the sky, as the camera is great at picking up faint auroras before your eyes spot them. This will give you a good idea of the direction you should be focusing your attention. Try to let your eyes adapt to the dark for at least 30 minutes; this will help your night vision develop. Wear warm clothing! Part of the fun of aurora hunting is the chase. Be prepared to sit or stand for hours if conditions are looking promising, as you won't want to miss the show when it starts! We recommend downloading a space weather app that provides aurora forecasts based on your location. One option I use is "My Aurora Forecast & Alerts," available for both iOS and Android. However, any similar app should work well. I also use the "Space Weather Live" app, which is available on iOS and Android, to get a deeper understanding of whether the current space weather conditions are favorable for aurora sightings. Our guide on how to photograph auroras is designed to help you capture the moment with a breathtaking photo. Editor's Note: If you snap a photo of the northern lights or southern lights and would like to share it with Space.com's readers, send your photo(s), comments, and your name and location to spacephotos@space.com.

2025-12-10 林小慧 航空 英-中

Most clicked story of the week: Billionaire philanthropist MacKenzie Scott has donated $387 million in unrestricted funds to eight historically Black colleges and universities in recent weeks. Each institution described their donation as one of the biggest, if not the biggest, in their history. Scott, who is largely out of the public eye, does not announce donation values unless the recipients do. Number of the week: 900+ The number of layoff notices the University of Southern California has issued since July. The private institution's leadership said last week that it is “on track” to eliminate its longstanding deficit by the end of the fiscal year, following the significant cost-cutting measures. Cuts and Closures Trinity Christian College, in Illinois, announced it will shutter at the end of the 2025-2026 academic year, citing ongoing financial issues such as persistent budget deficits and falling enrollment. In addition to establishing teach-out and transfer pathways, the private liberal arts college is allowing students to go over course load maximums with the goal of graduating as many as possible before closing. Another religious college in Illinois, the University of St. Francis, is taking steps to address budgetary issues. The university has laid off 18 staff and administrators following a $9 million deficit in fiscal 2024. It also notified "a number of faculty" that it was not renewing their contracts, which Joliet Patch reported as affecting another 18 employees. The University of Nebraska-Lincoln is facing pushback against its chancellor's proposal to eliminate six academic programs. An internal advisory group voted to oppose ending four of the programs and raised concerns with the methods and pace UNL's leadership used to decide which degrees should be on the chopping block. Guidance for college leaders Colleges undergoing significant restructuring must be prepared to “craft a positive narrative” about it and their involvement, according to the latest edition of the regular opinion series Merger Watch. Throughout mergers, acquisitions and even closures, college leaders need to own these narratives — or others will craft them instead, writes Ricardo Azziz, a consolidation expert who pens the series. A federal judge on Thursday ruled the Trump administration must fully fund the Supplemental Nutrition Assistance Program during the government shutdown — a decision the government has already appealed. Given the legal back-and-forth, it’s unclear when SNAP recipients will get their benefits, warned The Hope Center for Student Basic Needs, a resource and policy center at Temple University. The center is offering administrators and campus leaders a toolkit to help support food-insecure students during this "period of uncertainty." Quote of the Week: Under an August presidential order, Trump administration political appointees at federal agencies now have the power to ensure grant awards align with the federal government’s “priorities and the national interest” and don't promote undefined “anti-American values.” Academics and researchers like Lubell are raising alarms that the change — yet another significant departure from scientific funding norms — will erode U.S. research.

2025-12-10 林小慧 教育资讯 英-中

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