对于宇航员在太空中的生活来说,充足的资源非常重要,但由于向太空中运送物资的次数有限,且花费巨大,所以,太空中的很多资源必须循环利用。水作为太空中最重要的资源之一,更是如此。2008年,国际空间站上安装了1台水处理装置(WPA),实现了水资源的循环利用。WPA几乎可回收净化所有的水分来源,如国际空间站的水蒸气、废水、宇航员的汗液甚至尿液等,净化后的水 Adequate resources are important to the astronaut’s life in space, but many resources in space must be recycled due to the limited and costly shipping of supplies to space. Water is one of the most important resources in space, even more so. In 2008, a Water Treatment Unit (WPA) was installed on the International Space Station, enabling the recycling of water resources. WPA can almost purify and purify all water sources, such as the ISS water vapor, wastewater, astronauts sweat and even urine, etc., purified water