-25

 

                             

-25

   ( )

 

 

                                                                 

-25  . , , .

 

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        -25 - . .

. . (t = 50-70) . .

 

, , . , .

 

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.

 

  :

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      .                                                                  

           :

25 - 45

10

2,5 - 4,5 /

550

220

3500 3/

75

:                                                                  

1200

520

1200

130