In order to design and value a polling-based communication system, quantitative analysis of mean queue length is a key point.
为了对基于轮询机制的通信系统进行理论设计和性能评价，需要对平均排队队长进行定量分析。
In this paper, the author USES the contour integral in analytic function to functional analysis, and obtains the mean value theorem of operator-valued functions.
本文把复变函数的围道积分应用于泛函分析，对一般的线性闭算子得到了算子值函数的中值定理。
By making an analysis of different relations of distance, method of gravity center, method of mean value of class and method of sum of squares of deviations are compared in this paper.
本文从各种距离之间的关系来对重心法、类平均法及离差平方和法作一些分析比较。
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