常見(jiàn)例句雙語(yǔ)例句Using the heat of welding to vapour water, cooling rates are lowered on the weld bead and heat -affected zone.利用銲接時(shí)的加熱使水汽化，不僅使銲道而且使熱影響區(qū)的冷卻速度減慢。 返回 water-vapour welding