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自上世纪发明摄影技术后,人们开始在地面上或用气球对地面物体进行摄影。本世纪飞机的发明,使航空摄影测量得到了迅速的发展。人造卫星和航天飞机的发射成功,使我们更能从宏观上观察地球。现将其发展过程摘录如下。
Since the invention of photographic techniques in the last century, people began to photograph objects on the ground or with balloons. The invention of this century of aircraft, the aerial photogrammetry has been rapid development. The successful launching of satellites and spacecrafts has enabled us to observe the Earth more macroscopically. Now its development process is excerpted below.