... 螺杆泵进出口压力Import and export of screw pump pressure 泵的工作流量The work flow of pump 泵的安装方式Installation of pump ...
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Centrifugal pump characteristic curve on the efficiency of the highest point known as the design point, a pump at the point corresponding to pressure head and flow of work under the most economic.
离心泵特性曲线上的效率最高点称为设计点，泵在该点对应的压头和流量下工作最为经济。
In this paper, based on the work mechanism of the flow pump, gas ingestion and failure of helical seal are fully explained. Moreover, a new type of combined helical seal is put forward.
本文从泵的角度对螺旋密封“气吞”及“密封失效”现象作出了合理、全面的解释，并提出一种新型组合螺旋密封。
The use of mixed-flow pump performance parameters that work.
混流泵的使用性能以工作参数来表示。
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