“mechanical efficiency”的概念、定义、翻译、参考文献-科学参考

单词	mechanical efficiency
释义	mechanical efficiency Encyclopedia 工学机械动力学释 mechanical efficiency机械效率机械在稳定运转时，一个循环内的输出与输入功之比。理学﹝质点系动力学﹞释 mechanical efficiency机械效率机械的输出功（有用功量）与输入功（动力功量）的百分比。
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