短语词组短语roughen edges 粗糙边缘;粗拙边缘;边缘粗糙化;粗糙边沿Chemical Roughen 化学粗化surface roughen 表面粗糙化处理coarsen roughen 变粗糙machining roughen 机械加工粗化electrochemical roughen 电化学粗糙roughen n 变得粗糙roughen valley 糙底sand -blasting roughen 喷砂粗化 返回 roughen