- , 30 .
- , 8 .
◗ :
- .
.
- ,
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- , .
1 .
2
.
,
. ,
.
3 .
4 .
.
(Double-Active Calc
System) ( )
◗
.
(. 11).
◗ Calc-Clean .
Calc-Clean .
(
), Calc-Clean
.
1 .
2 .
3 .
.
4 .
5 .
6
Calc-Clean x (. 12).
7
.
. ( ) .
75
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