a cylindrical arrangement of insulated metal bars connected to the coils of a direct-current electric motor or generator,providing a unidirectional current from the generator or a reversal of current into the coils of the motor

• 电流转换器；整流器绝缘金属棒的圆柱形配置，连接到直流电动机或发电机线圈上，从发电机中提供方向不变的电流或对电动机线圈提供反向电流