,
= , (21)
( ) : = + , , ,
(22)
( ) : , , <> ( ), . .
s, ,
(23)
. . , , . ( , , .) (23) , (20).
, ,
= × = /, (24)
(25)
(26)
,
= b×Cg×Ee×...... (27)
, , . . (14), . , , ...
(28)
, .
= f (, , ,...), (29)
f - , , . .
= f ( , , ,...) (30)
(20) , , , .. , , . , , .., , <>, <> . .
(31)
. (30) (31).
, , . , , , . , , . , , , - - , .
, , , , 0.5% , 5% .
, (24) (, ), . , 1%, 0.5% 1.1%, 0.01% - 1%, . . , , . 0.01% , , .
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, (31), , .
, , . , , .