短語(yǔ)詞組短語(yǔ)AC TIG welding arc 交流TIG電弧TIG Arc welding machine 鎢極氬弧焊機(jī)tig arc welding tig 焊接pulsed tig arc welding 脈沖鎢極氬弧焊arc tig welding tig 焊TIG -Tungsten Inert Gas Arc Welding 鎢極惰性氣體保護(hù)焊 返回 tig welding arc