基于两相流体动力学的理论，建立空蚀射流切割装置中短管内的压力变化梯度的基本方程式；
Based on the theory of two-phase flow, the equation of the pressure gradient is found for the short pipe in cavitation jet cutting set.
从两相流动观点出发，推导了 含 沙水流时的伯努利方程式，使其更能真实地反映 含 沙水流 的力学特性；
Proceeding from the viewpoint of two-phase flow, the Bernoulli equation for silt-laden water flow is derived, which reflects real mechanic characteristics of silt-laden water flow.
从两相流动观点出发，推导了 含 沙水流时的伯努利方程式，使其更能真实地反映 含 沙水流 的力学特性；
Proceeding from the viewpoint of two-phase flow, the Bernoulli equation for silt-laden water flow is derived, which reflects real mechanic characteristics of silt-laden water flow.
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