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?? ?????? ??????? 2? ????? ??????? ?????? ????? ???????? ??? ????? ??????: ?????? ????? ??? ??????? ??????????? ????????? ?metatungstate (AMT ?APT) ????????? ?????? ???????? ??????? ?????? ???????? ??????? ???? ????? ???????? (WO3)? ???????? ?????? ?????? ?????? ?? ??????? ????? ?????. ????? ???????? ????? ????? ?????? ????????? ????? ??????? (? ?) ??????? ???????? ????? ??????? ??????? ?????? ??????? ????? ??????? ??????? '?????? ??????? ?????? ?????? ?????? ??????? ???? ???????? ????? ??????? ????? ???????? "??????? ??????? ???????? ???? ????? ?????? ????? ???????? ????????? ? "?????? ??????? (??? X? ???? ????) ??????? ???????? ???? ??????? ??????? ?? ??? ?????????? ??????????? ?????? (DU) ??? ????? ????????? ??????? ?????? ??? ???? ???????? ???????? ???? ????? ???????? ???? ???????? ???? ????????" ?????? ???????? ??????? ????? ????????? ????? ?????? ??????? ?????? (??? ???? ?????? ??? ????????)? ?????????? ???????? ??????. ????? ???? ?????? ?????? ?????? ?? ????? ???????? ???? ?????.
??? ?????? ??? ???? ????? ???????? ?? ??????? 1000 ?? ?????? ???????? ???? ??????? ??????? ????? ?? ??? 1997. ??? ??? ???? ?? ??? ?? ???????? ?????????????? ??????? ??? ?? ???? ?? ??? ?? ????? ???? ??? ???? ????? ????? ?????? ?? ??????? ????? ?????? ?????? ??????? ???? ???????? ?? ???? ??? ????. ??? ?????: ????? ?? ?? ??? ??????? ??? ??????? ????? ???? ?? ???? ??? ????? ???????? ??????? ???? ???? ????? ????? ????? ????? ???????? ?????? ??????? ??????? ??????? ??: ????? ?? ??? ???? ??????.