We found that work in the field of space travel had already been done, where the green algae-- chlorella-- was bred in tanks and fed to people living in a closed environment and kept them alive.
在太空工作的宇航员就食用螺旋藻 螺旋藻一般放在水箱中进行培育 它非常适合生活在封闭环境中的人食用