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车闸是什么杠杆

更新时间: 2021-01-16 08:55:15     

1、车闸,是控制刹车闸的省力杠杆,人们用很小的力就能使车闸以较大的压力压到车轮的钢圈上梗使自行车减速乃至停止,属于省力杠杆。

2、属于杠杆机构作用就是:在较长的力臂端施加的较小的力会在较短的力臂上产生较大的力。

关键词: 什么 杠杆

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