GPS定位技术的高效率、高精度、没有距离的限制、全天候作业模式及观测和数据处理的高度自动化等诸多优点，使GPS定位技术在大坝、坝区高边坡安全监测中得到应用。
Because of high-efficient, high-precision, no distance limitation, all-weather operation, highly automated and so on, the technology of GPS positioning is used in the security monitoring of the dam.
通过介绍GPS定位技术在辽河海南3井区的施测应用情况，分析了GPS网布设和基线解算及网平差数据处理等过程，并对数据处理过程中容易产生的问题提出了相应的解决办法。
This paper introduces application of GPS fixing technology in Liaohe well block Hainan 3, analyzes GPS layout, baseline resolving and processing of net adjusted data.
基于3s技术，介绍了三江源自然保护区土地利用方式变化的数据处理方法、解译结果及出现的问题。
Data processing, results interpretation and problems of variation in land use types of the Sanjiangyuan national nature reserve based on 3s technology were introduced.
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