短語(yǔ)詞組短語(yǔ)weld bridge seam 橋接焊縫;搭橋焊縫;建橋焊縫weld -seam heat-treatment 焊縫熱處理longitudinal weld longitudinal seam 縱向焊縫bridge weld seam 蓋板焊縫of longitudinal weld seam 經(jīng)向錯(cuò)皮weld seam metal 焊縫金屬weld seam detecting 焊縫檢查 返回 weld seam