, | |
(') | |
, , | |
, , , , | |
, , , , | |
, , , | - |
.
- , , , . - , , .
. ,
(,), (f,). . 㳿, J(/2).
J =p2 /ρC,
J , /2
p- , ,
ρ- ,/3
, /.
: 20 , (, ) ¾ 20 20 ¾ 20 . C (/) . , C~344 /; ~1500 /, ~ 3000-6000 /.
( ). . 800-4000 . 20-100 .
5. , ( )
, 㳿 (Li) (Lp), (). г :
Li = 101g J /J0, ;
L = 201g /0, ;
J0,-
|
|
1000 , J0 = 10-12 /2;
0 -
1000 , 0 =2*10-5 .
( ) 1000 J =102/2, =210 .
¾ . (), , (), . () . f /f =2, f- , f . f= f *f. , , ᒺ . , . . ()
2.