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mechanical advantage英英字典_mechanical advantage剑桥英语解释_mechanical advantage柯林斯英文解释_欧米惠必应词典
欧米惠必应词典

mechanical advantage

M 开头单词

柯林斯词典

    mechanical advantage

  • 1. N the ratio of the working force exerted by a mechanism to the applied effort 机械效率

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