?????

???? 2 ??????, ?? ??? ???? ?????, ????? ????? ??????? ???: ?????, ?????, ????? ????????, paratungstate ??????? & metatungstate (AMT & APT), ????, ?????? ??????? ????, ?????? ??????? ????, ??????? ??????? (WO3); ???? ??????? & ?????, ????? ?? ???? ???? ???; ??????? ????? ??????, ?????, ????? & ?????; ?????? ???? (WHA) ???? ?????? ??????, ????? bobs, ?????? ???? PCB, ???? ???? "billets & ?????, ??????? ????, ????? ????? ??????, ??? ???????, ??? ????? ??????, ??????? ???? ???? ?????, ????? ???? ?????? ????? & ????? , ?????? ???????? ?????? ?????????? (DU), ????? ????? ?????? ?????? ?????, ??????? ???, ????? ????? ??????, ????? ?????? ?????, ???? ?"?, ???? ?? ??????, ???? ???? (???? AHEAD) ???????? ?????? ?????. ?????, ?????? ????? ??? ?? ?????? ??????? ???? ????.

??? ???? ???? ?? ?? ??? ???? ???? 1000 ?????? ?? ???? ???? ?????? ??????? ???? ?????? ???? 1997. ?? ?? ?? ?? ????? ?? ??????? & ???????, ??? ???? ????? ??? ?? ?????, ???? ????? ??????? ??? ????? ?? ?????? ?? ??????, ?????, ????? ????, ????? & ????? ????? ??????. ??? ?? ??? ??????? ??: ?? ??? ?? ??????? ?????, ??? ???? ???, ?????? ?? ?????? ?? ?????? ??????? ????, ??? ?? ?? ??????, ?????? ??? ?????? ???? ?????, ????? ????? ??????? ???????? ????? ???? ????? ???? ???: ??? ??? ???? ?????? ???.