传统的交通网络数据模型是用结点-弧段模型来表示的。
The basic data model of transportation network is represented by node-arc model.
应用该模型可计算出二维裂隙网络中任意交点（内结点）的水头、等效水力隙宽、渗透系数、水力梯度等参数。
With the model, many parameters can be obtained such as water head, equivalent mechanical fissure width, seepage coefficient, and hydraulic gradient etc.
该模型基于用户感知的质量，以总质量作为中心结点，可以直接测量的质量子属性为网络根结点。
Applying the Bayesian network, the model was developed, and the overall quality was presented as the central node with the sub-characters as the root nodes.
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