The essential elements within the system and the interaction of intersystem form the ecological system, economic system and social system, which produce composite results with the intervention of man.
系统内要素、系统间相互作用,构成生态系统、经济系统和社会系统,在人们的干预下产生综合效益。
The essential elements within the system and the interaction of intersystem form the ecological system, economic system and social system, which produce composite results with the intervention of man.
系统内要素、系统间相互作用,构成生态系统、经济系统和社会系统,在人们的干预下产生综合效益。
应用推荐