而叶轮作为混输泵的核心过流部件之一，对泵的性能有着很大的影响，对它进行研究，更有着重要的意义。
The impeller, as one of the most important component in the pump, has significant influence on the performance of the pump, so the research of it has high significance.
SPV系列泵是单级混流泵，采用开式叶轮，后拉出式设计，可以提供卧式（SPP）和立式（SPV）两种型式。
Pumps of the series SPP/SPV are single-stage mixedflow pumps, adopted open impeller and back pull-out design. They are available in both horizontal and vertical design.
并描绘出制造相关的几何模型，提出了斜等距曲面的概念及相关公式，并介绍它们在制造混流泵叶轮中的应用，最后用实例验证所述方法的可靠性。
Accordingly, the concept of inclined equidistant curved surface and its corresponding formulae are proposed. Its practical application has verified the reliability of the method introduced.
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