词语封底焊
解释backingup
backingup〔名词〕回流详细»
backingup〔名词〕封底焊详细»
backingup〔名词〕封底焊,裹壁砖详细»
封底焊back sealing run;backing up详细»
封底焊back run welding;sealing run详细»