短語詞組短語butt -fusion welded joint 熱熔對接接頭tubular full penetration butt -welded joint 鋼琯相貫銲接節(jié)點Butt welded joint BW 對銲連接butt welded splice joint 對銲拼接welded butt joint 對銲;單麪銲的搭接接頭;單麪銲對接接頭;雙麪銲對接接頭double welded butt joint 雙麪對銲接single welded butt joint 單麪銲的對接接頭 返回 butt weld joint