基本解釋[機械工程]焊接區(qū)保護英漢例句雙語例句Weld the outer side member with a full butt weld under shielding gas.用氣體保護全對接焊，焊接外側(cè)梁。Weld spare wheel housing with the fire wall with an interrupted full weld under shielding gas.用氣體保護間斷全焊，將備胎罩與防火墻焊接。The flux coatings major task is to vaporize and form a shielding gas to protect the weld puddle from nitrogen, hydrogen and oxygen.通量涂料主要任務(wù)是蒸發(fā)，形成保護氣體保護焊水坑由氮氣，氫氣和氧氣。weld shielding更多例句詞組短語短語semi -automatic shielding weld 半自動保護焊weld shielding更多詞組專業(yè)釋義機械工程焊接區(qū)保護