At the same time, schedule the alarm that contains the network requests to fire at some random period of time.

与此同时，在随机的一段时间安排包含发起网络请求的alarm。

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In such studies, researchers would need to follow groups of children with and without music lessons over a long period of time—even if the assignments are not completely random.

在此类研究中，研究人员需要在很长一段时间内对上音乐课和未上音乐课的不同小组的儿童进行追踪——即使任务并不是完全随机的。

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According to the character of non linear network traffic, the traffic time series is decomposed into trend component, period component, mutation component and random component.

文章考虑网络流量非线性的特点，通过不同的数学模型将流量时间序列分解成趋势成分、周期成分、突变成分和随机成分。

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