d (.60) D , :
D = d - dDk + dDt + dDv,
dDk = d l . d/ l 0 - (l 0 - d l - );
dDt = a (t - tk)d - (a - , 12 . 10-6);
dDv = +2dsin2(v/2) = h2/2d - (v - , h - );
dDf = + 8f2/3d =+2.67 f2/d - () (f - , ).
, ():
L = L0 +dLk + a(t - tk)L0,
"+", () "-".
.60.
. , , d = 50.000 , 20- d l = +9.0 , t = 20, t = 4C, n = 230' (a=0.000012, h=2,183 , cosn=0,999048)
. :
dDk = +9.0 (50.0/20) = +0.022 ;
dDt = 12. 10-6(4 - 20) . 50.0 = - 0.010 ;
dDn = -2 . 50.0 sin2(230' /2) = - 0.039 .
D = 50.000 - 0.022 + 0.010 + 0.039 = 50.027 .
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