topographic surveying

基本解释

At the time of topographic surveying, terrain and feature in open areas with RTK measurement;
即在進行地形測量時，空曠地區的地形、地物用 RTK 測量；
The practice proves that the GPS fixing technology can meet the demands for cross section measurement, topographic and precise engineering surveying in reservoir area.
作業過程中各項指標均優於槼範槼定的精度要求。實踐証明，GPS定位技術可以滿足水庫斷麪測量、地形測量、精度工程測量的要求。
In construction of hydroelectric project, small range DTM data are often needed for topographic surveying, mapping, excavated form detection, earthwork calculation and so on.
水利水電工程施工過程中常常需要獲得一些小範圍的DTM數據，用於地形測繪、開挖形態監測及工程土石方量計算等。