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The law of conservation of energyLaw of conservation of energy implies that you can’t get more useful energy out of a machine than you put into it. In practice, the quantity of useful energy that you get out is often significantly less than the quantity of energy that you put in.

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Human Use of Chemical Fuel

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  • 发表日期：

    2025年

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  • Michael Anderson

摘要

The law of conservation of energyLaw of conservation of energy implies that you can’t get more useful energy out of a machine than you put into it. In practice, the quantity of useful energy that you get out is often significantly less than the quantity of energy that you put in.