“国际空间站”是远离地球的一小块人类居住地,它主要依赖可不断更新的和可重复利用的资源,来维持站内设备的运行和航天员的生存,最大限度地实现自给自足。“国际空间站”上长期驻人已经7年多了,航天员一般在站上逗留约6个月时间,处于相对封闭状态;偶尔有短期考察组进驻空间站; The ISS is a small human settlement away from the Earth. It relies mainly on continuously renewable and reusable resources to maintain the operation of its stations and the survival of astronauts and to maximize self-sufficiency. More than seven years have passed since the station was stationed on the International Space Station. Astronauts have generally stayed on the station for about six months and are relatively closed. Occasional short-term inspection teams stationed in the station;