说到宇航员的服装,你可能很快就想到密闭飞行服,因为在电视或电影中经常看到宇航员穿着这样的宇航服遨游太空的镜头。确实,载人航天初期,宇航员从升空到着陆,一直都穿着密闭飞行服。但随着长期飞行的开始,宇航员只在动态作业中如进入轨道、对接、分离、着陆时才穿密闭飞行 When it comes to astronauts’ clothing, you may soon think of airtight flight suits, because on television or in movies, astronauts often see such spacesuits in space. Indeed, at the beginning of manned space flight, astronauts had been wearing tight flight suits from the time of ascent to landing. However, with the start of long-term flights, astronauts only fly in closed orbits, docked, separated, and landed in dynamic operations.