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。
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。
For research of operation mode of the reservoir, the aerial topographic map was surveyed once again by the Yellow River Design Institute in 1995.
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