本文结合某电站水下地形测量应用实例，找到了解决急湍河段水下地形测量的一种可行方法。
Combined with an underwater topography survey case at a hydropower station, this paper found a feasible method to survey underwater topography on swift current river.
本文在介绍回声测深仪基本工作原理的同时，介绍了回声测深仪在杭州湾口外一拟建大型码头水下地形测量的一个应用实例。
The paper briefs the basic principles of the fathometer and its application to submerged landform measurement near a planned large dock out of the Hangzhou Bay.
这颗卫星利用地面对激光的反射，让研究人员以极高的精度测量地形。
The satellite bounces laser light off the ground, allowing researchers to measure the terrain with extraordinary precision.
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