【判断题】轧钢机机架是轧钢机机座中的重要零件,它用来安装轧辊、轧辊轴承座、轧辊调整装置及导位装置等工作机座中全部零部件,并承受全部轧制力,因而机架要有足够的强度和刚度。
【单选题】( )应采用相对独立分级设计,当其中任何一级系统故障时,均不应影响其他系统的正常运行:当故障解除后,应能自动进行系统的恢复处理。系统关键设备应冗余设置,重要数据应备份。
【单选题】轧钢机架的作用是()
A.
用来安装轧辊、轧辊调整装置和导卫装置等工作机座中全部零件,并承受全部轧制力的部件
B.
用来安装轧辊、轧辊轴承和导卫装置等工作机座中全部零件,并承受全部轧制力的部件
C.
用来安装轧辊、轧辊轴承、轧辊调整装置和导卫装置等工作机座中全部零件,并承受全部轧制力的部件
D.
用来安装轧辊、轧辊调整装置等工作机座中全部零件,并承受全部轧制力的部件
【单选题】( )应采用相对独立分级设计,当其中任何一级系统故障时,均不应影响其他系统的正常运行:当故障解除后,应能自动进行系统的恢复处理。系统关键设备应冗余设置,重要数据应备份。
【单选题】( )应采用相对独立分级设计,当其中任何一级系统故障时,均不应影响其他系统的正常运行:当故障解除后,应能自动进行系统的恢复处理。系统关键设备应冗余设置,重要数据应备份。
【简答题】阅读理解。 A man was travelling abroad in a small red car.One day he left the car a nd went shopping.When he came back, its roof was badly damaged(损害).Some boys told him that an elephan t had damaged it....
【单选题】Read and choose the best answer to complete the dialogue. W: Our car has taken us right to the foot of the Great Wall, Mr. Smith.M: Oh, what a marvelous sight it is! Could you tell me _____________...
C.
the length of the wall
D.
the height of the wall
【单选题】听力原文:M: The man at the gate thinks that I take good care of my car. W: Why does he think that? M: He couldn't see any dirty spots on the outside and the inside is clean, too. Q: What do you learn abou...
A.
He keeps his car in good condition.
C.
He is careless with his car.
【判断题】机架是用来安装轧辊、轧辊轴承、轧辊调整装置和导卫装置等工作机座中的全部零部件,并承受全部轧制力的轧机部件。
【单选题】W: Think about this carefully. you must have left them somewhere. M: But the problem is that I need them now. I need them to start my car, and when I get home I have to use them to open the door. W: M...
B.
He couldn't find his keys.
C.
He lost his mobile phone.
D.
He couldn't find his way.