... change point 变异点 change pulley 变速轮 change speed gear box 变速齿轮箱 ...
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main pulley for secondary change-speed 二级变速主皮带轮
Change fixed pulley 变幅定滑轮组
Between the inner ring and outer ring of damping pulley, there is a layer of special rubber, which can reduce the amplitude of resonance and relax the impact caused by change of load.
汽车上使用的减振皮带轮，其内外圈间填充特殊橡胶，通过它可以降低皮带轮运转过程中的谐振振幅，减缓变速时的冲击。
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