2.7.1 , .
2.7.2 :
) 2 ;
) .
2.7.3 : ; ; ; , .
2.7.4 , ( 2.19).
2.20 ,
/ | , | ʳ Qm/n | |
³ | |||
() | |||
ΣN |
;
1. ;
3, ;
, .
2. ̳ :
) :
- 175 m/ 50000;
- 250 / 50000 70000 ;
- 350 / 70000 ;
3. , ( = 0,85 ; = 0,7 ).
2.7.5 2.21 -
/ | ʳ - | |||
Q1 =100 / | Q2 =175 / | |||
- | ||||
- | ||||
- | ||||
- | ||||
- | ||||
- | ||||
- | Σ | Σ1= | Σ2= |
|
|
2.7.6 (N , ) :
(2.20)
- ' , ' , ;
- (. 2.22);
- , , (. . 2.20);
- , (, ) (. . 2.26);
Kt - ( 0,05 ) (. 2.23).
ϳ ______ ______________
________________________________________________________________________________________________
2.7.7 .
________ - (- ) ________/.
() _________________
________________________________
2.7.8 __________ ___________
________________________________________________________________________________________________________________
2.7.9 ( 36) (, , ) ___________
(Q, /) | ||||||
50 | 100 | 175 | 250 | 350 | 500 | |
ij, | 150 | 250 | 300 | 350 | 400 | 450 |
2.7.10 45, 36.
, -, , , , 45.
2.7.11 5.