短语词组短語rough rubbing contact 粗糙摩擦接觸;粗糙的摩擦接觸rubbing contact seal 摩擦接觸密封contact rubbing 摩擦接觸;碰磨contact -rubbing vibration 碰磨振動rotor contact -rubbing 轉子碰磨 返回 rubbing contact