In this paper by collecting physical neighboring nodes in distributed P2P overlay network, the supernode selection mechanism based on district partition is put forward.

本文通过聚集半分布式P 2 P网络中物理位置相近的节点，提出基于区域划分的超级节点选取机制。

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Graph overlay method is used in route alignment noise impact assessment to provide a basis for route alignment optimal selection.

采用基于地理信息系统的图形叠置法对线路比选方案的噪声影响情况进行评价。

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