《英文msh词典》System,Closed Ecological
[入口词] System,Closed Ecological
[主题词] Ecological Systems,Closed
[英文释义] Systems that provide for the maintenance of life in an isolated living chamber through reutilization of the material available,in particular,by means of a cycle wherein exhaled carbon dioxide,urine,and other waste matter are converted chemically or by photosynthesis into oxygen,water,and food. (NASA Thesaurus,1988)