The move crevasse superimposes mutually and constitutes the complex underground crevasse network, which are produced by geologic structure crevasse in Fuxin Basin and mining coal.
盆地内地质构造断裂和采煤活动中产生的采动断裂互相叠加，构成了十分复杂的地下断裂网络。
The city's tradition rank sequence is substituted gradually by the network structure, therefore the world city forms the complex network system.
城市传统等级序列逐步被网络结构所取代，世界城市因此形成复杂网络体系。
In recent years, with the increase of the network security products, the topological and structure of network became more complex, network security management becomes necessary.
近年来，随着安全产品的增多，网络的拓扑和结构越来越复杂，安全管理的难度与复杂度日益增加，网络安全管理的建设显得十分必要。
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