实验观测了射流局部达到冲刷平衡时，最大冲刷深度随射流喷口高度、喷口宽度、喷口流速、横流流速及泥沙特性变化的规律。
The variations of the local scour equilibrium depth with the parameters of the jet, such as jet exit height, width, velocity and sediments characteristics, were observed in the experiments.
通过沙量平衡分析方法，沉积泥沙存蓄变化量是造成尺度效应的重要因素之一。
Based on the analysis of the sediment balance, the change of sediment deposit is one of the important factors for scale effect.
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.
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