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com·mu·ta·tor AHD[kŏmʹyə-tā'tər] D.J.[ˈkɒmjəˌteɪtə]K.K.[ˈkɑmjəˌtetɚ]n.（名词）- 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
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