:

" " 1 / ( )

? !

" " 1 / ( )

(, .)

82.55
  " "   1 / ( )
  " "   1 / ( )
: 17151_7
:
82.55 .
82.55 .

(: 15 )





15
4
()
960
, . .
0,0287
!
*
*