避免和尖硬锐利的物质擦碰，避免受高压高热及化学试剂的腐蚀，以免擦毛或损伤。

Avoid and sharp hard sharp material to avoid the corrosion of high heat and chemical reagents, so as not to rub the hair or damage.

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有人走路低着头移开目光，以避免看某些穿着清凉的女性，将手背在后面就不会擦碰到他人。

Some walk with their heads down and eyes averted, to keep from looking at women who might be scantily clothed, their hands behind their backs so that they won't brush against one.

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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。

The double moved cylinder pretreating-machine clears away the nonidentical substance adhering to the surface of lump-shaped objects via centrifugal rolling friction collision.

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