二次配电系统是由降压变压器和满足最终用电设备电压等级的二次电路组成。

The secondary system consists of step-down transformers and secondary circuits at utilization voltage levels.

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二次配电系统是由降压变压器和满足最终用电设备电压等级的二次电路组成。

The secondary system consists of step-down transformers and secondary circuits at utilization voltage levels.

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