In the process conditions permit, the change in pump flow, head, speed and medium operating temperature operating parameters, to avoid the occurrence of cavitation.
在工艺条件允许的情况下，改变泵的流量、扬程、转速及介质的操作温度等操作参数，可以避免汽蚀的发生。
Plasma separating technology is used widely in clinic, which is usually carried out by means of a single blood pump. The operator adjusts the rotate speed to change the separating speed.
血浆分离技术在临床上广泛使用，它一般由单血泵完成，操作人员凭经验调节转速来改变血浆的分离速度。
Under a certain speed in order to flow variables that is if the change of the flow pump the pump head power and efficiency of all subsequent changes.
在一定转速下，以流量为变量，也就是如果改变水泵的流量，则水泵的扬程、功率和效率等都随之而变化。
The influence of the change of centrifugal pump rotating speed on the efficiency of the whole pump-unit which due to the variation of the pump efficiency and pipeline efficiency is studied.
讨论了离心泵的运行转速改变后，由于泵效率和管路效率的变化而给整个果装置效率带来的影响，由此可以判断离心泵改变转速后，泵装置的运行是否合理，并可确定泵装置运行的最佳转速范围。
This apparatus is enable to change the rotational speed of the pump in a wide range, to heat recirculating water and to load both axial and radial forces on the pump spindle.
该装置的特点是调速范围大，工作介质温度高，可以同时对泵轴进行径向和轴向加载。
This apparatus is enable to change the rotational speed of the pump in a wide range, to heat recirculating water and to load both axial and radial forces on the pump spindle.
该装置的特点是调速范围大，工作介质温度高，可以同时对泵轴进行径向和轴向加载。
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