为保证测量精度，应对非线性误差进行校正。

To ensure accuracy, the nonlinear error should be calibrated.

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结合局部标定法，对摄象机光学系统的畸变误差进行校正。

Combining with local calibration, the distortion error of the optical system in the camera is corrected.

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本文介绍了在化探编图中，对数据系统误差进行校正的一种方法。

A correction method of systematic errors of data for geochemical map compilation is introduced in this paper.

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