error in leveling [测] 水准测量误差
Futhermore problems of the error of astro gravimetric leveling and the nonlinear influence are discussed.
讨论了天文重力水准的误差及垂线偏差非线性影响等问题。
To eliminate the influence of nonlinear error of PSD on the measurement scale and accuracy of laser leveling tester, a new method of Radical Basis Function (RBF) neural network was used.
针对PSD非线性对激光测平仪测量范围和测量精度的影响，采用一种新方法——径向基函数神经网络算法。
The effect of atmospheric refraction error on observed value is a very thorny problem in EDM trigonometric leveling.
在光电测距三角高程测量中，大气折光对观测量的影响是一个非常棘手的问题。
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