It neither has heating problem of the electronics soft starter, nor generates high frequency harmonic like SCR.

它没有电子软起动器的发热问题，也不会像晶闸管一样引起高次谐波。

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Any subtle change of capacitance can be measured through the method of modulation on high-frequency harmonic oscillation return circuit.

电容的微小变化可通过对高频谐振回路调制的方法进行测量。

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High frequency harmonic in electric power network can pollute the network, control high frequency harmonic is an important research problem in electrical system function.

电网中的高次谐波对电网有污染，抑制高次谐波是电力系统运行中的重要研究课题。

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