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在模型试验的基础上，对高水头船闸阀门后廊道内通水消除空蚀破坏的机理及减蚀效果进行了探讨，指出在合理的通水方式下，对提高收缩断面的压强效果是显著的。
On the basis of the model test, the mechanism of eliminating cavitation erosion in the corridor of high-head ship gate valve and the effect of reducing corrosion are discussed. It is pointed out that under the reasonable water-passing mode, the effect of increasing pressure on the constricted section is significant .