A geometry designing method for developable surfaces backward swept centrifugal compressor was given in this paper.
给出一种可展曲面后掠叶片离心式压气机叶轮选型方法。
This paper gives new simple circuit proof for the equivalence of the characteristics basic on summing up the characteristics for developable surfaces.
文章在归纳可展曲面诸多特征的基础上，对这些特征的等价性，给出了一个全新、简洁的环路证明。
According to their developable characteristic, curved surfaces can be divided into developable and undevelopable ones.
按照它们的可展性质，曲面可以分为可展曲面和不可展曲面。
According to their developable characteristic, curved surfaces can be divided into developable and undevelopable ones.
按照它们的可展性质，曲面可以分为可展曲面和不可展曲面。
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