. . , , , ( ) ( ), .
, , (, , ) . ( =0.70-0.90) , , , - . .
. , , =0.61, 0.59, = 0.64, = 0.84, =0.80.
( ).
, , . (. 14). . . (1970) . : ( , ) 1.5-2 , 3.5-3.7 , 75-150%, .
14 - ()
(: . .)
Nn/n | ||
() | ||
0.80 | ||
- | 0.85 | |
0.64 | ||
0.70 | ||
0.55 | ||
0.68 | ||
0.45 | ||
() | 0.75 | |
0.50 | ||
0.65 |
. (16-24 .) . .
|
|
. .
, - . , , . , , . . .
, .
. (, ), , .
, , , , , . . , . .
- , . . . , , , . , 11-14 15- . .
. 11-13" . 14-17 , . 18-20 ( 1 -2 ) . 15-20, , , , , (. 38).