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论述了地面数字模型DTM(Digital terrain model).结合建筑工程勘测设计(公路选线设计、管道选线设计和土地整平土石方计算等)试验,检核验证了DTM数据的精度和辅助计算程序解算精度.
This paper discusses the digital terrain model DTM (Digital Terrain model). Combined with construction engineering survey and design (highway alignment design, pipeline alignment design and land leveling earthwork calculation) test, verify the accuracy of DTM data and auxiliary calculation program solution Counting accuracy.