... 示坡线slope line；depression line 地性线terrain line 地物plan metric feature；culture ...
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On the basis of summarizing previous work, the author makes the study and experiment on distilling terrain line by using principle and method of Mathematical Morphology.
在总结的人所做工作的基础上，采用数学形态学的原理和方法对地性线的提取进行了初步研究与实验。
参考来源 - 基于地形特征建立高质量DEM·2,447,543篇论文数据，部分数据来源于NoteExpress
In this paper, the methods of drawing contour line from terrain map, the vector of contour line and generating elevation data from vector data are discussed.
论述了从地形图中提取等高线、对等高线矢量化以及通过矢量数据生成高程数据的实现方法。
The thalweg in loess hill area is an important terrain structural line, reflecting topography and landform character.
黄土丘陵区的沟沿线，是反映该区地形地貌特征的重要的地形结构线。
The familiar horizontal line of architecture and deep shade of roof is suitable form for Korean terrain and climate.
常见的建筑水平线条和屋顶深深的阴影是非常适合韩国地形和气候的形式。
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