double-bevel groove weld 双斜边坡口焊缝 ; [机] 双斜坡口焊 ; 双面斜坡口对接焊缝

double-V groove weld 双斜坡口焊 ; 双斜边坡口焊缝

double groove weld 双面坡口焊缝

double fillet weld 双填角焊缝

double-flanged butt weld 双弯边对接焊缝 ; 双边卷边对焊接头

double-J groove weld 双J形槽焊

continuous double fillet weld 双面连续贴角焊

double submerged arc weld 双向埋弧焊

double V butt weld 双V形对接焊