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比转数是叶片泵设计应用中一个很重要的问题。在国内外一些流体机械专著中,对比转数这一概念的内涵叙述是不完全同一的。本文拟对比转数的定义、因次分析和相似的必要与充分条件加以论述、以便加深对比转数概念的理解和应用。
The specific rpm is a very important issue in the design of vane pumps. In some fluid machinery monographs at home and abroad, the connotation of the concept of comparative rotation is not exactly the same. This paper intends to contrast the definition of the number of revolutions, due to the secondary analysis and similar necessary and sufficient conditions to be discussed in order to deepen the comprehension and application of the concept of comparative revolutions.