The boundary of earthwork excavation and the Triangle network can be reconstructed.
将其用于土方开挖边线处理，在此基础上重新构网。
The data structures of DEM have five kinds of structure, including dispersed point, regular network, triangle irregular network, counter and mixing structure.
DEM数据结构有离散点结构、规则格网结构、不规则三角网结构、等高线结构和混合结构五种。
Then find out the two important motifs in knowledge communication through analyzing the triangle of the network.
另一方面通过分析知识交流网络中的“用户三角形”，揭示了虚拟社区中知识传播的两种基本图式。
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