字典網>> 英漢字典>> A開頭詞條>>alternating polarity的意思 漢英字典alternating polarity中文翻譯：【化】 交變極性 英文字典相關詞條：alternating current system alternating current welder alternating current arc welder alternating current erasing head alternating series alternating-current chronopotentiometry alternating-current polarography alternating affinity alternating current balancer alternating graph