????? ?? ????? ?????????
??? ?? ??? ??????? ??????? ????? ???????? ???? ???? ??????? ???????? ??? ????? ????? ?????? ??????? ?????? (2.8) ???? ??? ???? ????? ??????? ??? ??? ???????? ????? ?????? ?????? – ??????? ????? ?????? (3/?) ?? ??????.
?????? ?????? ?????? ???? ????? ?????? ?????????? ?????? ??? ??? ?? ??????? ??????? ????? ?????? ??????? ????????? ??????? ???? ????? ???????.