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人类在火星上登陆的一个主要障碍已经被克服：钻探水源。_我的网站
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Photo: Screenshot from the official website of WorldSkills Shanghai 2026
China has formally established a 220-member delegation for the 48th WorldSkills Competition to be held in Shanghai from September 22 to 27, with the approval of the Ministry of Human Resources and Social Security.
The delegation includes 71 competitors, 64 experts, and 64 interpreters and staff members. The competitors will take part in all 64 skill competitions at the event, the Science and Technology Daily reported.
The 71 competitors come from 21 provincial-level regions across China, including 49 students and 22 employees. Their average age is 21, with the youngest aged 18 and the oldest 25.
The WorldSkills Competition is the world's biggest international skills competition, bringing together young people, industry, education and government leaders from around the world to advance Technical and Vocational Education and Training, according to the WorldSkills Shanghai 2026 website.
About 1,400 competitors from nearly 70 countries and regions are expected to compete across 64 official skill competitions.
WorldSkills Conference 2026 and the WorldSkills Shanghai 2026 Expo will be held alongside the Competition, according to the event's official website.
Since joining WorldSkills International in October 2010, China has participated in seven editions of the WorldSkills Competition, winning 93 gold medals, 41 silver medals, 28 bronze medals and 71 Medallions for Excellence, according to Science and Technology Daily.
China has ranked first in both the gold medal table and overall team points for four consecutive editions. The Shanghai event will mark the country's eighth participation and the third time it has entered every skill competition.
"The delegation will strictly observe competition rules, compete fairly and with civility, demonstrate both sportsmanship and skill, and fully showcase the superb expertise and positive image of China's young skilled professionals in the new era," an official with the Chinese delegation was quoted as saying by Science and Technology Daily.
China's award ceremony uniforms and competition uniforms have also been unveiled. Both sets draw their central design elements from traditional Chinese mortise-and-tenon joinery, highlighting the inheritance of craftsmanship and the cultural confidence of China's young skilled professionals, according to the Xinhua News Agency.
Global Times
。据《北京时间》1月9日报道，第一批登上火星的宇航员面临的最大障碍之一是缺水。
B | 人们需要水来喝，农作物需要水来生长，甚至制造火箭燃料返回地球。因此，缺乏可用的液态水是人类登陆火星的主要障碍。但是火星上有很多冰。美国宇航局的一项新研究表明，我们可以在冰上钻孔，以获得足够的水来维持火星上的人类生命。去年，在火星表面下发现了冰川，这一重大发现为第一批宇航员登陆火星提供了“取之不尽，用之不竭”的水。研究人员说，在火星上的8个地方发现了地下冰川，有些位于地表以下几英尺（1米）的深处，还有一些位于地表以下100米或更深处。研究人员分析了火星勘测轨道飞行器收集的数据，发现地下冰川的成分“几乎是纯冰”。美国宇航局的一项研究模拟了钻冰和融化冰从冰川中取水的过程。德克萨斯州航空航天公司（Aerospace Corporation）的高级执行官斯蒂芬霍夫曼（Stephen Hoffman）领导的研究人员说：“火星表面曾经有很多水，但现在人们一致认为火星表面非常干燥。几项研究表明，火星的许多地方都有丰富的水资源，包括那些被认为是人类在火星上登陆的替代着陆点的地方。如果这些水资源可以用于载人登陆火星，那么执行这些任务的方式将发生巨大变化。
C | 研究小组考虑使用一个名为罗德井的水库，这个水库是在20世纪60年代发明的，并被用于在偏远地区提供水源，例如阿蒙森-斯科特南极勘测站。研究小组写道：“对现有的从地下冰川中提取水的技术进行评估，我们发现了一种可以从火星中提取水的技术：在火星冰川覆盖的表面上钻孔，加热冰以形成地下水库。
D | ”罗德井的原理是从表面钻孔，钻孔进入冰中，通过融化冰形成一个水库，然后从水库中提取水。
E | 通过不断加热储液罐，可以获得稳定的液态水。
F | 在火星上，一口罗德井一天能产生380升的水。这相当于美国人每天人均用水量，但大约是国际空间站宇航员用水量的10倍。研究人员说，火星探测器可以改装成具有钻井能力。
G | 根据最近在《科学》杂志上发表的一篇文章，尽管冰在火星上早已为人所知，但更好地了解冰的深度和分布对于未来载人登陆火星至关重要。亚利桑那大学月球和行星实验室的研究员肖恩·伯恩说：“水对任何地方的人来说都是必不可少的，随身携带是非常不方便的。
H | ”“以前，我们设想在火星上获取水的方法是从空气或岩石中获取水，”伯恩说。现在，我们想象从火星表面以下的冰中获取水。不需要高科技的解决方案，只要一桶水就够了。水源靠近火星上的人类登陆点，而不是极地。
I | 火星南半球和北半球有地下冰川，纬度在55到58度之间。研究人员认为，这些冰川形成相对较晚，因为其表面相对平坦，没有受到其他天体撞击形成的撞击坑。
J | 冰川靠近极地地区，火星上的冬天非常寒冷，不适合人类长期生存。但是，如果能在这些冰川上钻一口井，研究人员将对火星气候的演变和生命的可能性有一个很好的了解。
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Published on:03:54:32
