... 容积泵：对比一下电子元件配件。Positive-displacement pump 叶片泵：Impeller-type pump 容积式液压马达：Hydraulic do thingsuator ...
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impeller type pump 动叶轮泵
bronze roller type impeller pump 青铜辊筒式推进泵
open impeller type sand pump 开式叶轮泥浆泵
doubleshrouded impeller type sand-pump 闭式叶轮泥浆泵
closed impeller type sand pump 闭式叶轮泥浆泵
pump-type impeller aerator 泵型叶轮表面曝气机
From the performance perspective, the type of impeller and the general efficiency closed impeller or less the same, but the type of impeller pump head curve dropped more.
从性能上讲，该型式叶轮效率高和普通闭式叶轮相差不大，但用该型式叶轮泵扬程曲线较为陡降。
The type of the pump impeller and pump and centrifugal pump with a volume effect of particles suspended in mid-stream leaf out of date, do not hit any part of the pump, it is good non-destructive.
该型叶轮的泵兼具有容积泵和离心泵的作用，悬浮性颗粒在叶片中流过时，不撞击泵内任何部位，故无损性好。
The solutions are to lay stress on the type selection of a pump when it is designed, and to engage in technical reform for the pump impeller when it is used.
解决的方法有：设计时注重油泵的选型，应用中对泵的叶轮进行技术改造。
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