??? ???? ????? ????? ????? {???|???? ????, ???? ???? ?????? ????? ??? ?????. ???? ??? ????? ???? ?? ???? ??????, ??? ?? ?????? ???? ?-??????. ??????? ??? ??????? ????? ??? ????? ???? ????? ?? ????? ???? ???? ???? ??? ????? ????? ???? ???????. ??? ?????? ????? ???? ??? ????? ???? ?????? ???? ????? ???????. ???? ?? ????? ?????? airtight ????.