短語詞組短語butt seam welding 對接滾焊;對接縫焊;滾對焊;對縫焊接butt resistance welding machine 對焊機(jī)Butt -welding ends 對焊連接butt sefeel welding 滾對焊butt resistance welding 電阻對焊;對接電阻焊;電阻對接焊;對頭電阻焊接slanting butt seam welding 斜對接縫焊butt seam welding machine 對接滾焊機(jī);對接縫焊機(jī) 返回 butt welding