These documents are parts of four different levels, and they constitute a complex directed network by self_organization.
经分析发现该网络的网页分别处于四个不同的层次上，各网页自组织连接构成一个复杂有向网络。
According to these features, the evolvement model of this complex directed network has been proposed. This model reflects some main characteristics of the China Education network.
根据中国教育网的这些特点提出了该有向网络的演化模型，模型反映了中国教育网的一些主要特征。
According to these features, the evolvement model of this complex directed network has been proposed. This model reflects some main characteristics of the China Education network.
根据中国教育网的这些特点提出了该有向网络的演化模型，模型反映了中国教育网的一些主要特征。
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