电子水准仪的出现是水准测量技术一次大的变革。
The emergence of electronic level is a great technique change of level survey.
本文采用GPS技术及常规的方向、距离和精密水准测量对三个站进行了空间归心测量。
To determine the relative positions of them, the GPS technique, traditional direction and range survey, and precise leveling are adopted in this paper.
GPS技术结合高精度、高分辨率的大地水准面模型可以取代传统的低等级水准测量，真正实现GPS定位技术在几何和物理意义上的三维定位功能。
GPS technique, combined with the high precision geodetic level model, can replace the traditional low-grade leveling, and realizes 3d GPS positioning function on the meaning of geometry and physics.
GPS技术结合高精度、高分辨率的大地水准面模型可以取代传统的低等级水准测量，真正实现GPS定位技术在几何和物理意义上的三维定位功能。
GPS technique, combined with the high precision geodetic level model, can replace the traditional low-grade leveling, and realizes 3d GPS positioning function on the meaning of geometry and physics.
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