... rock embankment 堆石堤,堆石坝 error of coordinates 坐标误差 error of direction 方向误差 ...
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针对环形控制网的网形特点，推导了各类观测量：测边、测方向和测高的极坐标误差方程式。
In this paper, the polar coordinate error equations on side, direction and height in the circular control worknet are derived making good use of the circular character of circular worknet.
对已有的房产分丘图进行拼接套嵌过程中，由于坐标误差及方位误差的存在，导致了图形拼接套嵌后的变形。
During the course of joining together part graph of the house property, because of the errors of coordinate and the errors of azimuth, the graph would be deformed.
详细分析了主要的误差来源，分别是由参考星决定的局部参考架的误差约0.15角秒，目标量度坐标误差约为0.45角秒。
There were two main part of error source, the local reference system which was about 0.15as and the measurement coordinates of objects which were about 0.45as.
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