. 
[1, c 19].
.
,
= 1000 /3 - .
∙.
,
= 300∙105- , [1, 20]. 
.
d = .
. 3. .
. 3.
/.
3/.
.
Do=.
ns = 50...120 [1, 21], 
.
4.10. D1
/c.
:
= c0 = /;
/;
/,
[1, 22]. 
[1, 23]
[1, 4.4.]
/c;
/c.
, . 4.
. 4.
[1, 24];
/c;
/.
/c.
[1, 24].
2.
k = [1, 24];
z =.
,
. k3 =.
/.
/.
4.22. D2
3%. [1, 25]
4.23. D2
/.
4.24. k1
:
[1, 22].
|
|
|
;
.
4.25. k2
[1, 26] ;
;
.
4.26. k2
/.
4.27.
/c.
