chatter r mark颤动擦痕
cuttet and chatter mark波纹
rattermarke chatter mark加工表面波纹
cutted and chatter mark波纹
N(名词) any of a series of grooves, pits, and scratches on the surface of a rock, usually made by the movement of a glacier (常指冰川移动时留下的)颤动擦痕