back gouging造句

例句与造句

1. 4 double - welded groove joints shall have their root passes back gouged to sound metal on the reverse side before proceeding with welding on that side
   双面焊接的坡口焊道，应在焊接前将该面底部焊道逆向刨削，直到其对面露出完好的金属。
2. It's difficult to find back gouging in a sentence. 用back gouging造句挺难的