back gouging meaning in Chinese
背面清根
背刨, 刨根
反面气刨
刨焊根
清根
Examples
- 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。