[作業(yè) 運(yùn)輸] 脈沖電流電弧焊 pulsed arc welding: 脈沖弧焊pulsed arc welding machine: 脈沖弧焊機(jī)pulsed arc welding process: 脈沖電弧焊法pulsed arc welding rectifier: 脈沖弧焊整流器pulsed argon arc welding: 脈沖氫弧焊; 脈沖氬弧焊下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯