commutator
noun [ C ] electronics specialized uk/ˈkɒm.jə.teɪ.tər/ us/ˈkɑː.mjə.teɪ.t̬ɚ/
转接器(换向器)(电动机中的装置,改变电流方向)
a device used in some types of electric motors to change the direction in which an electric current is flowing
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