The new flood characteristics is discussed in this paper based on the analysis of the existing river bed variation and the physical model test results.
本文在分析现行河道断面形态及洪水演进特点基础上，结合近期实体模型试验成果，探讨了黄河下游防洪形势的调整变化。
An equation to calculate the critical discharge for river bed variation in alluvial rivers was derived through the theory of non-equilibrium sediment transport.
利用非饱和和输沙公式，首次提出了以悬移质为主的冲积河流中冲淤临界流量与水沙以及边界条件的一般关系。
An equation to calculate the critical discharge for river bed variation in alluvial rivers was derived through the theory of non-equilibrium sediment transport.
利用非饱和和输沙公式，首次提出了以悬移质为主的冲积河流中冲淤临界流量与水沙以及边界条件的一般关系。
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