1. . . . . .
2. - 20 N20. . - Nm
- 1.04( 4%). q=1.04, 
.
3. - , - - ( . -) - . .
- 20 , % - . 
( 1-2 115,3-5=100)
4. - . (-, f = 0,55 2 ) Np = f*∑ Nm*Sm
5. , . .
6. -
q=1.04
7. - , - .
8.
∑Np = 0,7*Np*T*K*K/q-1
9.
= 98,65[lg(∑Np)-C]
10. 
() (1=0,98, 0,95)
= *
11. . . 
.
. 2
, .. ..
=f(; ; h;D)
;h
1. +
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2. 
3. 
4. 
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