This paper expounds the surveying principles of GPS (PPK), and probes into the application of GPS (PPK) surveying and positioning in the mine surveying.
简述了G PS（PPK）的测量原理，探讨了差分GPS（PPK）测量定位在矿山测量中的应用。
This paper introduces the components and work principles of GPS, and according to the technical features of GPS survey, expounds the application of GPS in the practical survey of 307 national highway.
介绍了GPS的组成及工作原理，根据GPS测量的技术特点，论述了GPS在307国道实际测量工作中的应用。
This paper introduces the components and work principles of GPS, and according to the technical features of GPS survey, expounds the application of GPS in the practical survey of 307 national highway.
介绍了GPS的组成及工作原理，根据GPS测量的技术特点，论述了GPS在307国道实际测量工作中的应用。
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