低比转速泵的高扬程决定了叶片流道内逆压梯度比较高，这种压力分布使得水流易于在叶片表面脱流分离，这一现象甚至在泵的设计点也难以避免。
The high head produced by the impeller means high adverse pressure gradient within blade passage and because of this the flow often separates from the blade surfaces even at the design point.
多级离心泵主要用于高扬程的应用环境，应用于深井、高层住宅的供水、消防供水等。
Multi-stage centrifugal pump is mainly used for high head applications environment, use deep, high-rise residential water supply, fire water supply.
利用长征系列发动机主泵作为动力源，提高其转速，解决了燃料节流阀试验要求的高扬程、高背压等技术难题。
High delivery lift and high backpressure required in fuel throttle valve test were obtained through higher rotation speed of the main pump.
通过分析得出，旋喷泵在小流量、高扬程工况下运行时的效率高于多级泵和高速泵。
The efficiency of rotary-jet pumps under the operation of low flow and high delivery was higher than those of multistage pumps and high speed pumps through analyses.
高扬程的冷却泵，全可以冲走铁屑，实现冷却及倾屑的作用。
The cooling pump with high lift can absolutely clear a way the scrap iron and realize the effect of cooling and scrap cleaning.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
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