词语backing up
解释封底焊
词性名词
backing up〔名词〕封底焊,回投详细»
backing up〔名词〕封底焊,裹壁砖详细»
backing up〔名词〕回投,倒车,支撑详细»
封底焊back sealing run;backing up详细»
封底焊backingup详细»
封底焊back run welding;sealing run详细»