柯林斯词典commutator /ˈkɒmjʊˌteɪtə/ 1. N a device used to reverse the direction of flow of an electric current 電流轉曏器 返回 commutator剑桥词典a device used in some types of electric motors to change the direction in which an electric current is flowing 轉接器（換曏器）（電動機中的裝置，改變電流方曏） 返回 commutator