Two-component model for the distribution of galaxies and their systems, a self-similar distribution with a fractional structure and a random distribution, has been discussed.
本文讨论了星系及其系统的两种分布：具有分数维几何性质的自相似分布和无规则分布；
The empirical researches on the structure features of banking systems show that the two-power-law degree distribution has been observed in those banking networks.
对银行网络结构特征的实证研究发现，银行网络具有分段幂律度分布特征。
The paper introduces the concept and structure of premises distribution systems, and its application in building of electric power conduct and communication.
介绍了综合布线系统的概念及其构成，以及它在电力调度通信大楼中的应用。
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