问题 问答题 简答题

如何做到合理补加钢球?

答案

参考答案:

日常生产中要定期检查球磨机的球荷总量以及它们粒度组成,了解各种尺寸钢球磨损情况,及时校正补加钢球重量和比例,保持钢球的粒度组成与初装球粒度一致。磨损后形状不规则碎球积留太多时会影响磨矿效果,应定期清理。钢球一般6-10个月清理一次,铁球2-4个月清理一次。

单项选择题
完形填空
完形填空。
     War, money and power are a few things that countries and people are concerned about.   1   I agree that
those things are important, I believe that everyone should start to   2   more on a growing problem-global
warming.
     Global warming will not only   3   our country and our generation, but also-the entire   4   and future
generations. It is   5   because the weather has been a lot warmer over the past few years, which   6   the
melting (融化) of the ice in the Antarctic. This will soon cause water levels to   7   and flood parts of the
world.
     Many people ignore this problem because they feel   8   they can't do anything about it and have more 
  9   things to worry about. If we all  10  so, then our ozone layer (臭氧层) will be  11  and the planet will
no longer be able to make life continue to exist. We should do our best to limit the use of our planet's  12 
 resources (资源) and keep our air clean  13 , future generations will suffer from our  14 .
     Some might feel that they can't stop global warming from  15 . But if every single person does his or her
part in keeping the air clean, then it will become a  16  effort. Sure, there are some things that cause pollution
and that we won't be able to  17  change. This may include cars burning oil, but we can  18  adjust some of
these things. People can start carpooling, taking the bus, riding their bikes, or  19  just walking.
    If everyone takes  20  now, I believe we can start seeing remarkable results within a few years.
( )1.A.When       
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( )7.A.reduce      
( )8.A.as if       
( )9.A.popular    
( )10.A.do            
( )11.A.protected    
( )12.A.unlimited    
( )13.A.Therefore    
( )14.A.illnesses    
( )15.A.continuing   
( )16.A physical     
( )17.A.slightly   
( )18.A.at least    
( )19.A.yet         
( )20.A.time        
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B.completing   
B.results in   
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B.in case      
B.suitable     
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B.strengthened     
B.natural      
B.Otherwise    
B.failures     
B.arriving     
B.mental       
B.fully        
B.at most      
B.even         
B.turns        
C.How          
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C.affect       
C.industry     
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C.even though  
C.important    
C.like         
C.destroyed    
C.recycled     
C.However      
C.decisions    
C.improving    
C.national     
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C.at first     
C.still        
C.action       
D.Though            
D.remark            
D.confuse           
D.climate           
D.occurring         
D.escapes from                
D.move              
D.if only           
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D.surrounded       
D.industrial        
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D.Worldwide         
D.slowly            
D.at last           
D.thus              
D.arms