In the case of roller bearings, the rolling friction is substituted for sliding friction.

就滚柱轴承而论, 滚动摩擦代替了滑动摩擦.

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Static friction generate both rotation and translation, while rolling friction is an obstacle for rotation.

静摩擦不但使乒乓球产生旋转,也使乒乓球产生平动;滚动摩擦则不利于乒乓球运动中制造旋转.

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It provides the testing program of planar bearing rolling friction.

给出了平面轴承滚动摩擦试验方案.

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Rolling friction installations of up and down rollers will help reduce resistance and lower power consumption.

上下压轮装置采用滚动摩擦,有利于减少工作阻力,降低功率消耗.

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