The double moved cylinder pretreating-machine clears away the nonidentical substance adhering to the surface of lump-shaped objects via centrifugal rolling friction 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
At last, cylinder of double spiral roller grinded-paste machine is produced by centrifugal casting.
最后，通过离心铸造生产出双螺旋辊式磨浆机筒体。
3
In addition, this kind of hydraulic pumping unit will be simple and convenient to machine, operate and maintain, because the double-acting hydraulic cylinder will be replaced by a plunger cylinder.