n.活性氣體保護焊 metal active-gas arc welding: 活性氣體保護電弧焊metal active gas shielded arc welding: 混合氣體遮蔽電弧焊metal active gas welding: 活性氣體保護金屬極焊接; 熔化極活性氣體保護焊co2 gas arc welding: 二氧化碳?xì)怏w保護焊co3 gas arc welding: 二氧化碳?xì)怏w電弧焊下載手機詞典可隨時隨地查詞查翻譯