电视画面上,航天员们在冲你微笑,太空工作可真惬意啊!其实没有比太空漫步更危险的事情了。当航天员走出座舱,执行太空行走任务时,他们的生命完全维系于喷气背包,一旦出事,他们就有可能成为围绕地球运转的“人体卫星”。在微重力环境下工作,所有东西都处于漂浮状态,操作方式与地面迥异,一个手指头可以举起一个人,但稍有不慎,零件就有可能飞走,费九牛二虎之力抓回来的卫星,如果丢了,损失可就大了。 On the TV screen, the astronauts are smiling at you and the space work can be really enjoyable! In fact, there is no more dangerous thing than spacewalk. When astronauts get out of the cockpit and perform space missions, their lives are completely maintained in jetpacks, and once in an accident, they may become “human satellites” orbiting the Earth. Working in the micro-gravity environment, all things are in a floating state. The operation mode is very different from the ground. One finger can lift one person, but the slightest mistake may cause the parts to flew away. Satellite back, if lost, the loss may be great.