The function of astronomical leveling in height survey of position traverse control network is introduced.
简要介绍了天文水准在阵地导线网高程测量中的作用。
The techniques of measurement and data-processing theory was discussed in detail on the basis of precision traverse control network measurement of the long tunnel holing-through survey.
在某特长隧道贯通测量导线网测量工作的基础上，对长隧贯通测量的技术要点以及数据处理理论进行了详细论述。
It discusses the influence of ground control network, underground traverse survey, shaft orientation and gyroscopic orientation edge append-survey on breakthrough precision.
分析了地面控制网、井下导线测量、立井定向和加测陀螺定向边对贯通大型巷道精度的影响；讨论了提高测量精度的可行性方法。
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