river bed scour 河床冲刷
bed scour by hyperconcentrated flow 揭河底
rate of river bed scour 河床冲刷率
bed scour and sedimentation 河床冲淤
movable-bed scour-ing test qualitative 动床冲刷试验
bed d scour 河床冲刷
bed rock scour 基岩冲刷
The test results show that the apron can reduce back flow at the dam toe, and the piers can obviously diminish river bed scouring near the scour resistant wall.
试验结果表明：护坦减轻了下游纵向围堰左侧坝趾处的回流淘刷，隔流墩明显减轻了防冲墙附近河床的冲刷，确保了坝基和下游纵向围堰的安全。
A movable bed model test was carried out to study the flow diversion efficiency and local scour of a new-type submerged spur of sheet piles.
为研究新型板桩潜坝导流功效与局部冲刷问题，进行了针对性的动床模型设计。
A vertical two-dimensional flow model is developed to model the current around pipeline. A scour model is developed to model the change of bed level.
通过建立一个垂直二维紊流模型来模拟管道周围流场。建立泥沙冲刷模型来模拟海床底面变化。
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