只有特制的太空衣才能提供给他们生存所必须的大气压。
Only their special space clothing would provide the air pressure they needed to stay alive.
在无重力的状态下吃饭、睡觉；穿上太空衣在宇宙中漫步、修复人造卫星，一定是很有趣的经验。
Imaging that you are on a space mission and you have to sleep in zero gravity , help fix a satellite , and build a factory in orbit.
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