(MS) (C) (D), ( Ml): Ms = C+D. - : , . . - , - S (" "). - . S , , : s= , rr - , D - . 1/rr - , . S , . . ( , ) - , , . S , , S . MB, R, : MB = C+R, MB - , - , * R - . Ms=C+D, Ms - , - , D - . (m) - S : = Ms/MB s = - r ( ) - rr ( ):
D () :
r , , . rr , , , .
Ms=
.. S . , S . .