. , . , ( ).
:
1) t1, , ( ): t1 = ts (2) = t2;
2) : t1, ;
3) : t2, .
:
1) : t2, ;
2) F, 2.
, ( ) , .
, /, (35)
, ;
j , , /, .
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.
,
, /, (36)
, (.. ), /.
1, .. , .
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1, .. , . t2 = ts (p1) = t1 . ( )
, %.
F
, 2, (37)
k , /(2×);
Dt , .
68 /. 0,01550,0215 /(2×) (. .2).
, , (38)
Dt ( ) , , ;
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Dt , , .
Dt , .
2 = 030 %, (36), t2
, , (39)
, , /.
F .