Digital Terrain Model is a general designation of space topographical data set, and it is the digital description with the figure of space position and topographical attributive character.
数字地形模型是空间地形数据集合的统称,是具有空间位置特征和地形属性特征的数字描述。
参考来源 - 虚拟现实地理信息系统VRGIS的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Digital Terrain Model is the basic and core module of the railway route CAD system.
数字地面模型是铁路线路CAD的基础核心模块。
The methods to obtain the Digital Terrain Model (DTM) from contour map by scan digitizing were studied.
本文还研究了通过扫描数字化等高线图建立数字地形模型的方法。
This is an attempt to give a method of railway profile automation design by means of digital terrain model.
本文给出了一种用数字地面模型进行铁路纵断面自动设计的方法。
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