短語詞組短語power current circuit 動力電路Power control circuit 電源控制電路;功率控制電路power regulating circuit 調(diào)功回路pump power flyback circuit 泵電源反饋電路train power supply circuit 列車供電電路power wire circuit 電源有線電路voltage power amplifying circuit 電壓功率放大電路power maintenance circuit 電力維護(hù)電路electronic power switching circuit 電力電子開關(guān)電路 返回 power circuit