国际空间站长109米,只比美式橄榄球场少0.9米,重84万千克,是太空中迄今为止最大的人造建筑物。
The ISS has been visited by 230 people from 18 different countries to conduct research and carry out missions.
迄今为止,曾有来自18个国家的230人造访过国际空间站,开展研究和执行任务。
You would last about 15 seconds in space without a spacesuit.
若没有太空服,你能在太空中坚持15秒左右。
Because there's no pressure in space, air expands. This means the air inside your lungs would expand and tear through the tissue. And in such an extreme environment, your body would use up all of the oxygen in your blood in about 15 seconds. Other gruesome consequences of uNPRotected space exposure would include loss of bowel control, boiling blood, exploding capillaries, and bloating.
由于太空中没有压力,肺部空气会膨胀并撕裂组织。在这种极端环境中,身体会在15秒内耗光血液中的氧气。此外,还会出现种种可怕状况:大便失禁、血液沸腾、毛细血管爆裂、肿胀……
Outer space isn't empty space.
太空并非完全真空。
Besides the obvious stars and planets, you might think that the surrounding space is completely empty — a perfect vacuum devoid of all matter.
你或许认为,除了恒星、行星等天体外,太空就是不存在任何物质的真空。
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