问题
多项选择题
轴系对轮中心找正时，应做到（）。
A.以低压转子为基准
B.汽轮机的高、中、低压缸都已就位
C.对轮找中心都以全实缸、凝汽器灌水至模拟运行状态进行调整
D.各对轮找中时的开口和高低差要有预留值
E.在各不同阶段要进行多次对轮中心的复查和找正
答案
参考答案：A, C, D, E
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轴系对轮中心找正时，应做到（）。
A.以低压转子为基准
B.汽轮机的高、中、低压缸都已就位
C.对轮找中心都以全实缸、凝汽器灌水至模拟运行状态进行调整
D.各对轮找中时的开口和高低差要有预留值
E.在各不同阶段要进行多次对轮中心的复查和找正
参考答案：A, C, D, E
A. Beijing Hotel B. Changcheng Hotel C. Neither D. Both （ ）7. If we travel around National Day(国庆节), how much should you pay? A. ￥899 B. ￥999 C. ￥799 D. ￥1299 （ ）8. When can’t we book(预订) by telephone? A. 9:00 a.m. Monday B. 9:00 p.m. Thursday C. 9:00 a.m. Saturday D. 9:00 p.m. Sunday （ ）9.How many ways are mentioned(提到) if you want to know more information about the trip。 A. One B. Two C. Three D. Four （ ）10. Which of the following is true? A. Beijing Hotel has gardens with mountain views. B. Changcheng Hotel has no buses to the downtown. C. For more information, you can call 0514-7654321. D. The price for Jun. 8, 2010 is the lowest. | ||||||