易揮發(fā)的雜質(zhì) volatile impurities: 揮發(fā)性雜質(zhì)organic volatile impurities: 有機(jī)揮發(fā)性雜質(zhì)light absorbing impurities: 吸光雜質(zhì)light-absorbing impurities: 吸光性雜質(zhì)light-element impurities: 輕元素雜質(zhì)下載手機(jī)詞典可隨時隨地查詞查翻譯