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动力臂和阻力臂的公式
更新时间: 2021-05-25 06:48:10  

1、基本计算公式是“动力*动力臂=阻力*阻力臂”设动力F1、阻力F2、动力臂长度L1、阻力臂长度L2,即为F1L1=F2L2。

2、动力臂:从支点到动力作用线作一线段,使这条线段与动力作用线垂直,这条线段就是动力臂

3、阻力臂:支点到阻力作用线作一线段,使这条线段与阻力作用线垂直,这条线段就是阻力臂。

关键词: 力臂 阻力 公式

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