短語詞組短語Shielding Argon Gas Casting 氬封保護(hù)澆鑄shielding -gas manifold assembly 氣體集合管shielding gas nozzle 屏蔽氣體噴嘴Shielding gas mixtures 焊接保護(hù)混合氣shielding gas inlet ?，怏w進(jìn)口Shielding Gas Used 保護(hù)氣體mixed shielding gas 混合氣體保護(hù)shielding gas atmosphere 保護(hù)氣氛coaxial shielding gas 同軸保護(hù)氣 返回 shielding gas