试题与答案

离心式压缩机的后弯式叶片,指的是()。A.叶片的出口角大于90° B.叶片的进口安装

题型:单项选择题

题目:

离心式压缩机的后弯式叶片,指的是()。

A.叶片的出口角大于90°

B.叶片的进口安装角小于90°

C.叶片的进口安装角大于90°

D.叶片的出口角小于90°

答案:

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