短語詞組短語environmentally -benign arc quenching medium 環(huán)境低負荷消弧媒體Environmentally y Benign Manufacturing 環(huán)保生產(chǎn)environmentally benign technology 不損害環(huán)境的技術environmentally benign chemistry experiment 無害實驗As Environmentally Benign And 作為環(huán)境友好和environmentally benign process 環(huán)境友好過程environmentally benign synt hesis 環(huán) 返回 environmentally benign