, , , , , . .
:
,
N ; h; ; hr , , r , r , r ; h r ( r =r =r =0 . 4-4); S , 2; 3 .
, . .
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9. 4 5 0.
. . 4-5 05 r =0,7; r =0,5; r =0,1 h r = 0,93.
r =r =r =0, . 4-5 ( ) hr = 0,85. N = 40; = 32000 ; 3= 1,5; h = 0,8; S = 30∙60 = 1800 2, :
.
0 = 24,272 7,549% = 321,493 5.
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