Cold lap is a condition where the weld filler metal does not properly fuse with the base metal or the previous weld pass material (interpass cold lap).是什么意思_Cold lap is a condition where the weld filler metal does not properly fuse with the base metal or the previous weld pass material (interpass cold lap).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句