由于阻抗器的等效电阻为纯电阻，因此在调整电压的过程中不会产生谐波。

Because of the pure resistive nature of the equivalent resistance of impedor, no harmonic will be generated during the voltage regulation.

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另外，管壁内表面过热熔化金属掉入阻抗器，会降低阻抗器的寿命和性能。

Furthermore if internal surface is over heat, melt metal shall drop into impedor and shall low the life cycle and properties of impedor.

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在该电源的输入与负载之间连接了一只阻抗器，通过接入反馈控制网络自动调整阻抗器的电阻值，即可稳定输出电压。

A impedor is connected between the input and the load. The impedor is automatically adjusted by linking feed back loop for the purpose of stabilizing the output voltage.

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