短语词组短語curved generatrix 曲母線generatrix brazing 銅排銲接generatrix - 發生器generatrix directions 母線方曏side generatrix 側母線basket generatrix 轉鼓母線copper generatrix 銅母線median generatrix 中母線Generatrix cease 母線停運 返回 generatrix