Moreover, the new concepts of ecological optimization criterion and finite time availability are presented.

同时，还介绍了生态学优化准则及有限时间可用性等新概念。

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It is emphasized that the main content of ecological optimization criterion of a refrigerator is to make the best compromise between the refrigeration rate and its dissipation.

强调了制冷机生态学准则的主要内容是要使制冷率与制冷率耗散达到最佳的折衷。

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