本文提出一种新的水平角观测法，该法把传统的复测法同全圆测回法结合起来。

This paper puts forward a new method of measuring horizontal angles, which combines the traditional method of reiteration with the method of round.

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介绍了测设和检验圆曲线的两种新方法：任意角夹角法和任意切线长支距法。

This paper presents two kinds of new methods for setting out circular curve: free angle and tangent length method.

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本文根据圆的渐开线原理和两点间的距离公式，得出两种用放射式丈量法测画不分道跑起跑线的新画法。

This article utilizes the theory of involute of circle and the formula of the distance between two points to obtain two radiated measurement ways of defining the starting line.

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