The contrast analysis of measured results showed that the length of the image base line had no effect on the measurement of height difference under stereomodel.
测量结果的对比分析表明，象基线对立体模型下的地形高差测量没有影响，现用高差计算公式不能给出正确的结果。
The contrast analysis of measured results showed that the length of the image base line had no effect on the measurement of height difference under stereomodel.
测量结果的对比分析表明，象基线对立体模型下的地形高差测量没有影响，现用高差计算公式不能给出正确的结果。
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