The basic data model of transportation network is represented by node-arc model.
传统的交通网络数据模型是用结点-弧段模型来表示的。
Get the vulnerability grade of water supply network through index value of the water node.
由用水节点的脆弱性指标值，得到给水管网的脆弱性等级。
Having put forward project to carry out network manufacturing of the bolt-node ball in detail.
提出了实现网络化加工空间网架螺栓节点球的具体方案。
Having put forward project to carry out network manufacturing of the bolt-node ball in detail.
提出了实现网络化加工空间网架螺栓节点球的具体方案。
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