Based on the extreme hypotheses, common models of hydraulic geometry and movable-bed resistance are established.2.
并利用极值假说分别构建了研究河相关系和动床阻力的一般模型。
参考来源 - 基于极值假说的冲积河流动床阻力与河相关系研究·2,447,543篇论文数据，部分数据来源于NoteExpress
从而从这些有缺陷的能量平衡方程所得到的一些泥沙运动理论，如输沙强度、动床阻力等，就难免在理论上存在一定的不足。
Therefore, some sediment transport theories derived from these energy balance equations of sediment-laden flow, such as sediment transport intensity, resistance in movable bed, etc.
利用近10000组资料，比较了包含本文公式在内的23种动床阻力计算公式，在已知流量、能坡和泥沙粒径时预测水深的计算精度。
The precisions of 23 movable-bed resistance equations, which contain the equations of this paper, have been compared by using near 10000 sets of measured data.
本文在输沙实验的基础上，从研究水流结构着手，分析了水流和泥沙之间的相互作用关系，讨论了动床沙粒阻力和底沙输移规律。
Based on sediment transport experiments, the interaction between flow and sediment movement is analysed and the problems of grain resistance and bed load transport on plane movable bed are discussed.
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