The double moved cylinder pretreating-machine clears away the nonidentical substance adhering to the surface of lump-shaped objects via centrifugal rollingfriction collision.
双动滚笼式螺旋预处理机是通过对块状物体的离心滚动摩擦碰撞，清除其表面的非同质附着物。
2
The advantage ofrolling bearing is that they cause less friction.
滚动轴承的优点是它产生的摩擦力较小。
3
It provides the testing program of planar bearing rollingfriction.