1. , 90
2. ( ) 5 10 . . - .
3. 5 . .
( ) .
( )
1. 0 -
2. 5 ( I - );
3. 530 (II - );
4. 30 III - , .
, :
1. 0
2. I , ;
3. II () ;
4. III , .
20.5. :
+ - | ( ) a) b) | + - |
, | Sp Ny ( ) | , |
, | , | |
, | - | , |
, | , | |
, | a) b) | , |
+ - | + - | |
, | , | |
: | ||
(t 25C) | ||
(t 45C) |
( ) | ||
( ) |
20.6. :
- | ( ) c) d) | + + |
Sp Ny | Sp Ny , , , II | |
- | ||
c) d) | ||
- (.) | - (.) | |
Ny , , , I , 25" | Ny , , , III , 45" I-II . | |
: | ||
Ny , I 25" | (t 25C) | Ny , III 50-60", I-II . |
Ny , I 15" | (t 45C) | Ny , II 55", I . |
|
|
( ) | I | |
( ) | II |