Atmospheric vertical refraction is the main factor which affects the precision of EDM trigonometric levelling.
大气垂直折光是影响EDM三角高程测量精度的制约因素之一。
Through data simulating, the thesis proves that atmospheric refraction is not a neglected factor in to aerial digital remote sensing images.
通过数据模拟，本文得出了大气折射对于航空数字遥感影像的影响不容忽略的结论。
The result of optical measurement, which is affected by the factor of atmospheric refraction, is discussed.
讨论在靶场光学测量中，大气因素如何影响测量结果。
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