204 . . ( 100 ). => . , . , ( ¼ , , 35% , , 27% . .
R - , .
R = 2 2,5% R => .
, => (, ) . . .
202030 . 2-2,5 . 40 .
. => , . , 1/3 , 30-40%.
, , => , . .
,
, , .
- . 75
( ) , . 1/3 , . ( ) R 50-55%. , ( 20-25%). .. .
, (=M/W), .. ¼ . ↑ , ( ). ( - , , ). => => .
|
|
. > , < . ↑ ↓
:
,
,
.
3 :
1) h1=h2, δ-<δ+ - δ=M/W .
2) h1>h2, δ+>δ- - , , , , .
3) h1>>h2, δ+>>δ- . . .