短語詞組短語butt seam weld 對(duì)線銲;對(duì)接滾銲銲縫butt joint weld 對(duì)接銲butt groove weld 對(duì)接坡口銲butt -weld 對(duì)頭銲接;平式銲接;碰銲;以對(duì)頭銲接接郃plain butt -weld 對(duì)銲flash butt -weld 閃光對(duì)接銲縫 返回 butt weld