柯林斯詞典commutator /?k?mj??te?t?/ 1. N a device used to reverse the direction of flow of an electric current 電流轉向器 返回 commutator劍橋詞典a device used in some types of electric motors to change the direction in which an electric current is flowing 轉接器（換向器）（電動機中的裝置，改變電流方向） 返回 commutator