This paper introduces the distribution of GPS control net of hydro-junction, and analyzes on the precision design of GPS control net.
介绍了水利枢纽GPS平面控制网的布设，分析了GPS控制网的精度设计。
With the engineering practice, the auhtor select some methods to deal with height fitting of a GPS control net of Guangdong province.
结合工程实际，对广东某市GPS网的GPS高程和联测的几何水准采用多种拟合方式进行拟合。
Briefly introduces GPS technique, with example of setting up GPS control net in national highway 210 route, discusses the application of GPS technique in highway control surveying.
简单介绍GPS技术，结合在国道210线建立GPS控制网的实例，论述GPS技术在公路控制测量中的应用。
At present, GPS plane control net is widely applied, but the GPS elevation is not used widely. The people expect that the GPS elevation surveying can take the place of the conventional leveling.
当前，GPS平面控制网已经得到了广泛的运用，但是GPS高程却运用得不够，人们期望着能够用GPS高程测量代替传统的水准测量。
This article introduces a method of establishing GPS surveying and control net by utilizing International GPS Service (IGS).
本文介绍利用国际GPS服务（IGS）快速建立测量控制网的方法，具有很高的实用价值。
Combined with survey experience, the author probed into the methods of setting up ground control net with GPS and EDM lead for small hydropower projects based on the introduction of practice examples.
结合测量经验，探讨了用GPS与EDM导线建立小水电工程地面控制网的方法，并以实例加以介绍。
Under the control of net being under construction specifically for city orbit traffic GPS, necessity having suggested that under the control of net checks in the period being under construction.
针对城市轨道交通GPS施工控制网，在施工期间提出了控制网检测的必要性。
Under the control of net being under construction specifically for city orbit traffic GPS, necessity having suggested that under the control of net checks in the period being under construction.
针对城市轨道交通GPS施工控制网，在施工期间提出了控制网检测的必要性。
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