This paper puts forward a "Spectrum Analysis" method to analyse the random power oscillation in power system caused by external disturbance, and sets up a complete digital model.
本文提出了用“频谱分析”的方法分析外部扰动引起的电力系统随机振荡，并建立了完整的数学模型。
So, a complete and effective urban guide system is needed to provide the convenience and comfort to the life of citizen and external staff.
为了市民和外来人员的生活方便和舒适性，这就需要有一套完整有效的导向系统来支撑。
I write telephone external guidance system main engine end complete source code.
详细说明：俺写的电话遥控系统的主机端完整源代码。
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