短語(yǔ)詞組短語(yǔ)automatic submerged are welding 埋弧自動(dòng)銲接semi -automatic submerged are welding machine 半自動(dòng)埋弧銲機(jī)automatic argon tungsten are welding 自動(dòng)鎢極氬弧銲 返回 automatic are welding