Windows 7 - User's Guide

١٤
 
 
 
                 .
               
 .      100240  ,5060  .     
                
              HP  
.
         .
  
  19.5     2.31 45 
19.5     3.33 65 
:              240
 rms.
:           .
 
  
 
 )     (5    35  41    95  
 -20    60  -4    140  
  ) (
10%  90%10%  90%
 5%  95%5%  95%
   ) (
-15  3048 -50   10000 
 -15  12192 -50   40000 
٧٧
 ١٤ 