路由器E必须重算网路拓扑。

Router E has to recompute the network topology.

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本文针对农村公路网的地图表示及网路拓扑结构的提取和构建这两项关键技术，提出了一种新的高效实用的解决方案。

This article put forward an efficient scheme aimed at map express of country road network and construction of network topology structure.

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这种拓扑是扩充树的网路。

This topology is the spanning-tree of the network.

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这种拓扑是扩充树的网路。

This topology is the spanning-tree of the network.

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