And three geometric correcting methods are provided for correcting the error originated from the digitizing and the map paper's distortion too.
同时，给出了三种几何纠正方法来纠正数字化和图纸变形产生的误差。
And three geometric correcting methods are provided for correcting the error originated from the digitizing and the map paper's distortion too.
同时，给出了三种几何纠正方法来纠正数字化和图纸变形产生的误差。
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