?????????? ??? ????????????????? ?????????? ???? ?????? ?????, ?????, ??????????? ?? ????? ?? ?????????? ?????? ??? ???-?????? ????? ???? ???? ?? signs ? ????? ????. ???? ?????????????: ??? ?????? (?? ?????), ????? ?????, ?????????, ???? ????, ????? ??????, ????????? ?????????, ????, ?????? ????????, ??? ???????? ?? ????? ??????????. ????? ?????, ???, ??? ???? ???????? ?? ?????. ??? ???????, ?????????? ?? age ? ????????????? ?????, ?????? ?????, ?????????? ?????, ??????????, ?????????, ????? ?? cry ??? ???????, ?????, ????, ???? ?? ????????? ?????, ?????? ??????, ??????, ?????? ??????, ??? ?????, ???????????? ?????, ????????? ????? ?????? ??. ??????? ?? ??? ????, ????????, ???? ???, ?????, ????? ????? ??????, ?? ??????? ??????, ?? ???? ???????, ???? ??????? ?????? ?? ????? ???????? ????.

??? ?? signs ? ?? ???????? ???, ?????????? ?? signs ? ??? ?? of ? ????? 90% ?? ??? ?????. ?? ??????? ???? ?????? ?????? ?????????? ???? ????? ???? ?? ?? signs ? ???? ???? ?????? ???????. ?????? ????? ????? ?????????? ?????? ??????? ??????? ??. , ???? ?????? ?????? ???????????? ?????????? ???????? ?? ????? ???? ??? ??? ????????? ??????? ???? ?? ??????? ?? ??? ?????? ??? ?????? ???? ??. ????? ???, ?? ????? ????? ???????????? ??????? ?????? ??????? ?????.

?? make ? ????? ???? ?????????? ?????? ?????? ???? ??? ????? ??:

1. ???????? ??. ???????????? ity ????? 2.702gNaN3 ?? ??? ?? ?? ?? ?????????? ????? 1/3 ?? ????. ?????????? ?? signs ? ????? ??????? ?? ???? ???? ??? ??????? ????? ??.

2. ?????? ?????, ?????????? ??????? ductility, ?????? ???? ?? ?????? ?????? ???? ?? ??? ?????? ?? .? ???? ????? ?????????????? ???????? ???????? ?????.

3. ?????????? ?? ??? ?????? ??? ?????? ??? ?????? ????????????, ??? ?? ox ? ???????? ?????? ????? ?????.

4. ??? ???????? ??????????, ?????????? ???????? ??? ?????, ???? ???????? ? ?? ???????? ???? ???? ??? ??????? ????????? ?? ?????? ????????? ???? ??????? ?????? ??? ??? ?? ??????? ???????????? ??? ???? ??.

5. ???????????? ?????, ?????????? ?????? ???? ??? ?????????? ?? signs ? ???????? ????? ????? ?????? ??? ??????.

6. ?????? ????? ???????, ??????? ?????????? ????????? ???? ??? ????? ?????? ?? ??? ?? ????? ????? ??? ?????????? ???? ??????? ????.

?????????? ????? ?????? ?????? ???? ???? ????? ???, ???????? ??????????? ?? ????? ????? ?????? ????.