, , () . , , , .
, R, , = Rsina (. 100). D l DF = sD l, . DF (DF1 DF2), , DF2 , . , , DF1:
2, , :
(68.1)
, ,
(68.2)
, , , Dp.
(68.1) (68.2) *, :
(68.3)
R1 R2 - . , , , .
(R1 = R1 = R) (68.3) (68.1), (R1 = R R2 = ¥ )
(R1 = R2 = ¥) .
e
() , , . , , (. 101).
. 101
, (68.2). , , . , . . h, ( ) rgh D, . .
|
|
, g .
r , q , . 101 , (2scosq)/r = rgh,
(69.1)
, , , (69.1) q < p/2 (cos0>0) , 0>/2 (cos0<0) . (69.1) , () . . , (0=0) (=1000 /3, <=0,073 /) 10 3 .
. , . , . .