Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
The conclusions provide the important reference for the suppression of low frequency oscillation and stable operation in power system.
所得结论对于电力系统低频振荡的抑制以及电力系统稳定运行具有重要的参考价值。
The conclusion can provide reference to research into the causes of power system low frequency oscillation .
该研究结果对探讨电力系统低频振荡的产生原因具有一定的参考价值。
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