与无弯管相比，弯管造成叶轮进口的流场紊乱。
The bent pipe makes the flow field of impeller inlet strongly disordered.
水泵吸水室就是泵的进口法兰至叶轮进口的过流部分。
Pump sump is the connection between the flange of the inlet of the pump and the inlet of the impeller.
论述了离心通风机叶轮进口相对涡流的产生及其变化规律。
Produce & Change low of relative vortex at impeller inlet of centrifugal fan are discussed.
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