Closer throttling, creating higher pressure drops may cause cavitation or excessive velocities which could cause high noise levels, vibration and possible damage to the valve or adjacent piping.
如果节流较小，将因此产生更高的压降将可能导致空穴现象或超快流速，从而导致噪音太高，振动剧烈，可能损坏阀门或相邻的管路。
There is no cavitation damage and irrigation water and so on.
不存在汽蚀破坏及灌引水等问题。
There is no cavitation damage and issues such as irrigation water.
不存在汽蚀破坏及灌引水等问题。
The theory and experimental results of a new rotating-flow test device for cavitation damage are introduced.
介绍新型旋转水流式空蚀试验装置的原理及使用该装置的试验成果。
Simultaneity lateral cavity and bottom cavity are linked each other, which prevent cavitation damage of sidewalls and soleplates.
侧空腔畅通并直接和底空腔相连，对侧墙和底板都起到了很好的保护。
One of the main problems of spillway tunnel with large discharge and high velocity flow is the cavitation damage.
高水头、大流量泄洪洞内高速水流问题主要问题之一是水流空化引起过流表面空蚀。
Annual overhaul, the impeller blades have cavitation pitting damage, each must overhaul welding and grinding blades, but also labor-intensive maintenance personnel and poor working environment.
每年大修时，叶轮叶片有汽蚀破坏麻点，每次大修都要焊补和打磨叶片，而且维护人员劳动强度大、工作环境差。
The relations between the intensity of cavitation erosion, the resistance to cavitation damage and the mechanical properties oft…
最后分析不同速度下剥蚀强度的变化趋势、剥蚀阻抗与材料机械特性的关系。
Such phenomenon is being called as cavitation, resulting in cavitation erosion and damage of impeller in fast manner.
这种现象叫作气穴现象，会很快使叶轮气蚀，损坏。
Such phenomenon is being called as cavitation, resulting in cavitation erosion and damage of impeller in fast manner.
这种现象叫作气穴现象，会很快使叶轮气蚀，损坏。
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