Topographic Form and Design Technology.
地形与设计技术120。
The formation of different types of geomorphology in the Loess Plateau is a complicate systematic process, and the form can be seemed as a function compounding different topographic factors.
黄土高原地区各种地貌类型形成是一个复杂的系统过程，地貌形态可以看成是各种地形信息因子复合在一起的一个函数。
In construction of hydroelectric project, small range DTM data are often needed for topographic surveying, mapping, excavated form detection, earthwork calculation and so on.
水利水电工程施工过程中常常需要获得一些小范围的DTM数据，用于地形测绘、开挖形态监测及工程土石方量计算等。
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