To maintain both the voltage and the frequency within limits requires fine power control and load regulation.

既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。

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To maintain both the voltage and the frequency within limits requires fine power control and load regulation.

既要保持电压而在限制范围内的频率，需要良好的功率控制和负载调节。

youdao