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??? ?? ???? ??????? ??? ??? ????? ????:

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???????????? ?????????? ?? signs ?, ????? ?????? ????? ?? signs ? ????.

??????: ??????????, ?????????? ?????? ???, ?? ??????? ????, ?????, ??, ??? ??????.

?????? ??????:

?????????? ??? ????? ??????? ?????, ?????? ?? signs ?, ??? ??? ?? signs ?, ??? ?????, ????????? ?? ?? signs ?, ?? ??????? ???? ?????? ?? signs ?, ??????????????? ?? signs ?, ?????? ?? signs ?, ???? ??? ?? signs ?, ????????? ???????? ?? etc. ? ????. ??? ?????? ?????? ?????, ??????? ????? ?? ??????????? ??? ?????.

????? ?? signs ? ???? ???????? ?????:

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??? ?? ???? ??????? ?????:

2.5 ??? ??? ?????? ??????, ????? ???? ?????? ????????, ???????? ???? ???????? ?? ????????? ??????? ????????, ?????? ?????? ?? ???? ??????? ?? ??????, ??? ??????? ???????, ??? ??????? ??????? ????????, ???? ???? ?????? ??????? ????????, iction ???? ?????????? ??????? ????????, ????? ?????- ?????? ?????, ?????? ????? ?????? ??? ??????? ????????, ?????? ?????????? ??????? ?????? ????????, ?????? ?????? ???? ??????? ???????, ??????? ???????? ??????? ????????, ???? ?? hard ??? ???????, ?????? ??????? ????????, ??????? ????????, ???? ???? ??????? ????????, ??????? ????? thickness ??? ????? (???????? thickness ??? ??????), ??????? ????? ?????, ??????? ?????? ???????, ??????? ?????? ???????, ?????????? ???????, ???????? ????? ???????, ??????? ?? ness ??? ???????, ????? ?? ??????? ???????, ???????? ???????? ????? ?????????? ???????, ??????-?????????? ???????, ????? ????? ???????, ???? ??????? ???????, ?????? ????? , ????????? ???? ?????, ????????? ??????? ???????, ???? ?????, ?????? ???? ????????, ???? ?? ???? ?????, ??????? ??? ???????, ??????????? ?????? ??????? ????????, ????????? ?????? ??????? ????????, ??? ????? ??????? ????????, ????????? ????????? ??????? ???, ????? ?????, ??????? ????? 100, ??? ?????, ????? ?????????, ??????? ???, ??????? ????????????? ??????.