短語(yǔ)詞組短語(yǔ)argon tungsten -arc surfacing welding 氬弧堆焊argon tungsten pulsed arc welding 鎢極脈沖氫弧焊manual argon tungsten arc welding 手工鎢極氬弧焊argon -shielded tungsten arc welding 鎢極氬弧焊tungsten argon arc welding 鎢極氬弧焊tungsten argon -arc welding 鎢極氬弧焊 返回 argon tungsten arc welding