4.3.              305

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^^''''^^	^	^^ ./	/		
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	4			8	
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(l)(4)     
Pit. 4.26.    

     ,   -
        ,      .
,         
   ,   ,  -
   -    .

        ,
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,       ,   
            -
,     .      (-
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   ),      
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      -
  :

Ck = (?Cpi)/2,

 Ck   , ;   -
 ,  i-  .  -
         
   ,         
,       -
      
.      ,  Ethernet 10 /,
   Cpi  10 /,    , 
 Cpi   20 /.

 ,     
.  ,          