搅拌轴的设计需要考虑哪些因素?
参考答案:
设计搅拌轴时,应考虑以下四个因素:
①扭转变形;
②临界转速;
③扭矩和弯矩联合作用下的强度;
④轴封处允许的径向位移。
将下列句子按正确顺序排列,组成对话。
A. Do you have a basketball?
B. Yes,I do. Let me ask my mother first.
C. Hello, Linda. Let's play baseball.
D.I like comedies. Do you like comedies?
E. Well, let's go to a movie.
F. That sounds good.
G. What kind of movies do you like?
H. No,I don't.
I. It's boring. Let's play basketball.
J.OK.
1._____2. _____3. _____4. _____5. _____ 6. _____7. _____8. _____9. _____10. _____
在1974年5月的选举中,当选为法国总统的是()
A.蓬皮杜
B.德斯坦
C.戴高乐
D.密特朗