The hydrodynamic characters of runoff in the process of rill erosion were studied by using runoff scouring experiment under the different slope gradients and the different flow discharges.

通过不同坡度、不同流量的组合放水冲刷试验，对坡面细沟侵蚀发生过程中的坡面流水动力学特性进行了研究。

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The foaming phenomenon in iron bath was studied by means of hydrodynamic model and high temperature experiment method.

用冷态模型和高温实验的方法，进行了熔融还原过程熔池中起泡现象的研究。

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Under the joint action of buoyancy, hydrodynamic force and capillary power, oil (gas) moves intermittently. This has been verified in the physical simulation experiment.

在浮力、水动力和毛细管力的共同作用下，油（气）呈间歇性运动，这在物理模拟实验中已得到证实。

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