aerial l topographic map 航测地形图
For research of operation mode of the reservoir, the aerial topographic map was surveyed once again by the Yellow River Design Institute in 1995.
为了满足水库运用方式研究的需要，黄委会设计院于1995年5月航测了水库1：1万地形图。
The basic functions of the flight plan of aerial photography based on scanned topographic map are achieved.
实现了基于地形图扫描数字化的航摄规划设计的基本功能。
Orthophotomap has been increasingly used to practical production because it keeps rich aerial photograph information and has the feature of topographic map.
正射影像图因为保留了航摄像片丰富的影像信息又具有地形图的特征，因此，在实际生产中得到了越来越广泛的应用。
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