The time domain average method is an efficient method to extract period components from the signal mixed with noise.
时域平均法是从混有噪声的信号中提取周期性分量的最有效方法。
This paper puts out the method to decide the optimization period of cleaning of water-cooling sets based on the largest average of COP, which was applied in industry practice.
根据水冷设备机组运行曲线，提出以最大平均COP来确定其最佳清洗周期的方法，并将其应用于实际中。
Because it is improved that only the change method and the birthrate of the population are not increased, and the population is healthy, the period of labor of the population is extended on average.
改变的办法，不只是增加人口出生率，而是提高人口健康状态，延长人口平均劳动年限。
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