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???? ???? ??????? ????? ?????? ??????? ???????? ???? ?????????? ?? ???? ??? ?????: ?????? ???????? ?????? ????? ?????? (HPMC) ?????. ????? HPMC ?????? ????????? ??????? ?? ???????? ????????? ??? ???? ????? ?? ????? ?????? ?????????? ?????? ?? ?????? ??????? ??????. ???? ??? ???????? ?????? ?????? ?????? ???? ????? ??????? ??????? ??? ???? ?? ???????? ?????? ?? ???? ????? ????? ???????. ???? ?????? HPMC ????? ?????? ????? ??? ?????? ???? ????????? ???????? ??? ???? ??????? ????????? ????????? ??????. ???? ??? ?????? ????? ??????????? ??????? ????????? ?? ???????? ???? ????? ??? ???? ???? ??? ????????? ??????????? ??? ????? ?? ??? ??????? ??????? ???? ???? ??? ????? ????? ??? ???? ????? ??????. ???????? ?? ???????? ?????????? ?????????? ????? ???? ??????? ????? ?????? ??????? ???????? ??? ???? ??????? ?????? ????? ????? ?????? ??????? ????? ???????? ?????? ??????? ??????. ????? ????? ???? ?????? HPMC ?? ??????? ??????? ??????? ??? ??????? ???????? ???????? ??? ????? ????.