确定了检测图像中的机场位置后，就可以将检测结果与参考图像中的机场位置进行比较，从而实现机场位置变化的检测。
After attaining the airports' positions, we compare the airports' positions of the reference image to that of the detecting image to detect the changes of the airports.
确定了检测图像中的机场位置后，就可以将检测结果与参考图像中的机场位置进行比较，从而实现机场位置变化的检测。
After attaining the airports' positions, we compare the airports' positions of the reference image to that of the detecting image to detect the changes of the airports.
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