变动回水区河床演变特性。
Evolution characteristics of riverbed in fluctuating backwater area.
根据艾山以下河道的冲淤特性确定了挖泥疏浚的设计流量；依据实测资料建立了河槽糙率与流速的关系，并以此确定河床的糙率。
The design flow for dredging activities is determined on the basis of the scouring and silting characteristics of the channel downstream of Aishan.
本文通过分析黄河水沙变化特性，探讨了河床沉积与形态调整的变化。
In this paper, the characteristics of the flow-sediment variation and the corresponding adjustment of riverbed shape are studied based on the observation data.
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