常見(jiàn)例句雙語(yǔ)例句Experiments on CO2 gas shielding GDQA308L flux cored wire one side welding using ceramic backing were also implemented.對(duì)CO2氣保護(hù)藥芯焊絲GDQA308L配合陶瓷襯墊單面焊雙面成形進(jìn)行了試驗(yàn)。 返回 ceramic backing welding