问题 问答题 简答题

简述磨机主电机起动的步骤?

答案

参考答案:

(1)检查高低压润滑系统润滑正常,电控柜无油压、油流、油温等报警,“高压正常”灯亮。

(2)检查减速器稀油润滑系统正常,电控柜无油压、油流、油温等报警。

(3)检查综合电控柜上无报警信号。高压柜备妥灯亮,主电机允起灯亮,

(4)按下综合电控柜上的“主电机启动”绿色按扭,主电机运行。

完形填空
完形填空。
     I like science very much. I want to be a ____1____ when I'm older. But I don't know how to become one.
    There ____2____ one special answer for everyone, but I can tell you some ideas. Start with something from the world ____3____ you, and you can learn about it and understand it.
    Here are some suggestions(建议). How about birds? Ask your mum or dad it you can ___4___a cage. Then try to find someone who may ____5____ the birds and can teach you about the birds.
    How about numbers? You may think that maths is ____6____. But you will be surprised if you start
doing puzzles and games with them. ____7____ can be fun.
    How about stars? ____8___ someone among your friends who can help you pick out stars and groups of stars.
    There are lots of ideas ____9____ these. They are will be fun and teach you things. You will soon learn these things from nature. ____10____ are not science. They only help you understand it.
( )1.A. teacher  
( )2.A.  is      
( )3.A. around  
( )4.A. put      
( )5.A. know    
( )6.A. easy    
( )7.A. Numb ers
( )8.A. Look at  
( )9.A. as      
( )10.A. Books  
B. reporter  
B. isn't    
B. before    
B. give up    
B. know about
B. not easy  
B. Games      
B. Look up    
B. about      
B. Language  
C. scientist    
C. will be    
C. beside      
C. hand in      
C. learn        
C. interesting  
C. Puzzles      
C. Look for    
C. like        
C. Ideas        
D. doctor        
D. haven't      
D. in front of    
D. put up        
D. learn from    
D. not difficult  
D. Birds          
D. Look after    
D. for            
D. Messages      
单项选择题