短語詞組短語weld -penetration 熔深weld penetration depth 焊接熔深weld penetration status 焊縫熔透狀態(tài)variable weld penetration 熔深易變性weld penetration control 熔透控制weld penetration monitoring 熔透監(jiān)測side weld penetration technique 熔透技術(shù)penetration weld 熔透焊縫;滲透焊;未焊透焊縫full -penetration weld 全焊透焊縫;全浸透焊道 返回 weld penetration