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5 为了减少链传动的运动不均匀性及减轻冲击及动载荷,通常采用 ,并限制链 轮的极限转速。 a )较小的距和较多的链轮齿数 b )较小的距和较少的链轮齿数 c )较大的距和较多的链轮齿数 A. a ）较小的距和较多的链轮齿数
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