Measuring technique such as coordinate method , arc chord offset method and internal control measurement are applied .
施工测量中运用坐标法、圆弧弦线支距法以及内控法等多种测量法。
This paper introduces the theory and its application of the curvilinear guided survey methods in concealed excavation of tunnels, such as chord offset method and tangent offset method.
介绍暗挖隧道曲线导向测量方法——弦线支距法和切弦线支距法的原理及应用。
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