在设备状态监测和故障诊断中,______是设备异常或故障信息的重要载体。
A.设备的信号检测 B.设备的状态矢量C.设备的变化信息 D.设备的基本模型
参考答案:B
补全对话。
A: Hello, Bill. I haven't seen you for a long time. How are you?
B: Fine. Thank you. __1__?
A: Pretty good. I was told that you would finish your high school study. __2__?
B: I am going to study computer in college. __3__ ?
A: My parents are hoping l will go to music school, but I'm not so sure.
B: I know you like playing the violin, don't you?
A: Yes, __4__. But I hate having to study music theory.
B: Why don't you ask your music teacher for advice?
A: __5__
下列关于注水泵说法正确的是()。
A.注水泵设有暖泵阀
B.注水泵出口不设单向阀
C.运行时注水泵出口压力是恒定不变
D.注水泵出口设有单向阀