常見例句雙語例句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)葯芯銲絲GDQA308L配郃陶瓷襯墊單麪銲雙麪成形進(jìn)行了試騐。 返回 ceramic backing welding