试题与答案

传动轴由于零件的磨损、变形及安装位置不正确等会使传动轴的临界转速()。A.降低 B.

题型:单项选择题

题目:

传动轴由于零件的磨损、变形及安装位置不正确等会使传动轴的临界转速()。

A.降低

B.提高

C.不变

答案:

参考答案:A

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