短语词组短語roughen edges 粗糙邊緣;粗拙邊緣;邊緣粗糙化;粗糙邊沿Chemical Roughen 化學粗化surface roughen 表麪粗糙化処理coarsen roughen 變粗糙machining roughen 機械加工粗化electrochemical roughen 電化學粗糙roughen n 變得粗糙roughen valley 糙底sand -blasting roughen 噴砂粗化 返回 roughen