某传动轴的直径为80mm,转速为70r/min,材料的许用剪应力为50MPa,则此轴所能传递的最大功率为()kw。
A.73.6
B.65.4
C.42.5
D.36.8
参考答案:D
-Where the traffic accident happened?
-At the entrance to the cinema. [ ]
A. it that was
B. it was that
C. was that it
D. was it that
主甲板边缘入水或舭部开始露出水面的稳性称为()。
A.初稳性
B.静稳性和动稳性
C.大倾角稳性
D.横稳性和纵稳性