topographic surveying

基本解释

At the time of topographic surveying, terrain and feature in open areas with RTK measurement;
即在进行地形测量时，空旷地区的地形、地物用 RTK 测量；
The practice proves that the GPS fixing technology can meet the demands for cross section measurement, topographic and precise engineering surveying in reservoir area.
作业过程中各项指标均优于规范规定的精度要求。实践证明，GPS定位技术可以满足水库断面测量、地形测量、精度工程测量的要求。
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。