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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本文结合实测试验资料，分析了局部区域内温度梯度分布特点和变化规律，讨论了它们对水平角观测的影响。

With the help of observed data, this paper analyses the distribution of temperature gradient in Local areas and discusses the effect on observation horizontal angles.

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本文结合实测试验资料，分析了局部区域内温度梯度分布特点和变化规律，讨论了它们对水平角观测的影响。

With the help of observed data, this paper analyses the distribution of temperature gradient in Local areas and discusses the effect on observation horizontal angles.

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