All of these parts are part of our life support system.

所有这些片段只展现出我们生命维持系统的一部分.

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And then he pointed to this and he said: " Life support system. "

之后他指着这个(地球)说道: “ 生命维持系统 ”.

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These problems involve primarily the oceans and atmosphere which areare the basis of our life - support system.

这些问题主要涉及海洋和大气层,而海洋和大气层是人类所共有的,是维持生命系统的基础.

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