stadia leveling
... stadia interval 视距丝距 stadia leveling 视距水平 stadia method 视距法 ...
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水平视距 distance of visible horizon
水平视距测量 horizontal stadia
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介绍了中丝视距法测量水平距离和高差的基本原理及计算公式，并对其测量精度进行了分析。
This paper introduces a basic principle and calculation formula of measuring the horizontal distance and elevation difference by central hair stadia, and analyzes its measuring precision.
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