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怎样建筑“三位一体”太阳能暖圈?

答案

参考答案:

“三位一体”太阳能暖圈是由沼气池、太阳能暖舍、厕所组成。它的建筑形状一般采用单列式拱型塑料膜暖圈。圈舍后墙高1.8~2.1米,中梁高2.2~2.6米,前沿墙高1米,前后跨度(南北长)5米,东西长度根据养猪数量自定,但最小长度要等于或大于4米,后墙与中梁之间用木橼搭棚,在檩上或橼上用高粱秸、芦苇、玉米秸勒箔,箔上抹2遍草泥,冬季上铺碎草并用玉米秸压住防寒。

中梁与前沿墙之间搭成拱型支架,冬季上覆塑料薄膜,棚舍单栏前后跨度4米左右,宽4米,每棚可分一栏或多栏,栏与栏之间隔墙高8米,在靠近后墙处留1米宽人行道,猪床与人行道之间的隔墙高0.8米,下设食槽,每栏开一门。为了加强冬季猪舍保温能力,北墙、外山墙采用保温复合墙体。可以用苯板、蛭石或经过处理的高粱壳、稻壳、锯末等做复合墙体保温材料。

沼气池建在猪舍地面下边,主池中心应该位于猪舍南北宽度的中心线上,北纬370°以南地区,水压间(出料间)设在猪舍内、外部均可,冬季进行覆盖保温。北纬370°以北及高寒地区设在猪舍内为好,以便冬季池体保温。

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     Friends are very important in people's lives. Some friends have   1 views and
interests, and   2   like the same things. Should friends be different 3   the same? I
don't care. I have two best friends, Wang Lei and Lin Ying. Wang Lei   4   like me. I
am 5  than most of the students in my class, and Wang Lei is also quiet. And we both
enjoy  6  . On weekends, we often go to the library to do some reading. But the other best friend of mine, Lin Ying, is   7   different from me. She is much more outgoing. |She likes   8   and often makes me laugh. She also likes 9  , so she is more athletic. I
don't think differences are important in a   10  . What's your opinion?

( )1. A.same        
( )2. A.some        
( )3. A.and          
( )4. A.isn't        
( )5. A.quiet        
( )6. A.reading books
( )7. A.not          
( )8. A.doing sports
( )9. A.sports      
( )10.A.match        
B.opposite      
B.another      
B.but          
B.doesn't      
B.quieter      
B.playing games
B.more          
B.telling jokes
B.books        
B.concert    
C.active          
C.other          
C.or              
C.does            
C.outgoing        
C.watching TV    
C.quite          
C.going to parties
C.movies          
C.family          
D.free                
D.the other          
D.then                
D.is                  
D.more outgoing      
D.going to the movies
D.lots of            
D.going shopping      
D.subjects            
D.friendship  
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