While Hydraulic turbine run in sediment-laden flows, sand particles will impact the flow-passage parts and remove the structure of the surface cause severe erosive damage.

• 当通过水轮机过流部件的工作水流中含有坚硬的泥沙颗粒时，沙粒对过流表面的冲击可使其产生严重的磨损破坏。