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。

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The underwater topography survey is playing the important role in the inland river and in the coast engineering construction and the water depth survey precision is always paid key attention to.

水下地形测量在内河和沿海工程建设中发挥着重要作用，水深测量的精度也历来为人们所重点关注。

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