The systematic errors which exists in the measured data are revealed in this paper, and the non-accuracy of the medium error index dealing with directions are pointed out.
本文提出了经纬仪在测量数据中所存在的系统误差，从而指出了采用方向中误差指标的不确切性。
The systematic errors which exists in the measured data are revealed in this paper, and the non-accuracy of the medium error index dealing with directions are pointed out.
本文提出了经纬仪在测量数据中所存在的系统误差，从而指出了采用方向中误差指标的不确切性。
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