The static frequency modulation characteristic of electric network is the foundation of frequency stability of the electric network that determined by frequency modulation.
由一次调频决定的电网静态调频特性，则是电网频率稳定性的基础。
The static frequency modulation characteristic of electric network is the foundation of frequency stability of the electric network that determined by frequency modulation.
由一次调频决定的电网静态调频特性，则是电网频率稳定性的基础。
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