話務(wù)員(電)話機(jī) operator set: 算子域multi operator welding set: 多站電焊機(jī)operator-set electronic widow: 算子法電子窗single operator set: 單焊機(jī)single operator welding set: 單站焊接設(shè)備下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯
