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2, ???? ?? ??????? ?????? ????: ????????? ?? ????? ?? ??? ??????? ??? ??? ????? ?????? ???????, ????? ?????? ???????? ???? ?????, ????? ?? ?????? ?????, ??? ?? ?????? ???????.

3, ?????? ????? ???????? ??????: ????????? ??? ??? ????????? ????? ???? ??????? ?????? ????? ???? ????, ???? ????? ???? ???? ?????, ???? ???? ??? ???? ???? ??? ???? ????? ????? ?????? ?? ?????? ???? ??????? ????????? ?????, ????? ?????? ??????? ????? ?????.

4, ????? ??? ???????: ????????? ???? ????????? ?????, ???? ??? ?? pH, ?? ????? ????? ?????? ?????? ???, ????? ?????? ?????? ????? ????, ???? ??????, ?????, ????? ??? ???', ??? ????? ?? ???? ????? ???????? ?? ?????.

5, ??????? ????????? ???????????: ????? ???????? ??????? ??"?, ????????? ???? ?? ??????? ????????? ??????????? ???? ????? ????? ?????? ????? ??? ???, ?? ????? ????? ?? ?????? ???? ??????? ?? ?????? ?????? ??????? [2]. ??????? ??? ?????? ?? ?????????? ?????? ???? ???? ???? ???????.

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1, ????? ????: ????????? ???? ?????? ???? ?????? ??????, ???? ????? ??? ????, ?????? ?????? ???'. ??? ???? ?????? ?????? ????????, ???? ?????? ??????? ??? ????? ??????? ????? ??????.

2, ???? ???????: ??????? ???????, ????????? ??? ?? ????? ???????. ???? ?????? ?? ?????? ??? ?? ????, ?????? ??, ?????? ????? ???', ??? ????? ?? ???? ??????? ??????? ??????.

3, ??? ????, ???? ?? ?????? ???: ????????? ????? ??????? ???, ????????? ?? ????? ???????? ?? ??? ?????? ???, ??? ?? ????? ????? ?? ???????????, ?????? ???? ?? ????????? ???? ?????? ?? ????? ????? ??????, ????? ????? ????. ??????? ???? ???????? ?? ??? ?????? ??????? ?????????? ????? ????.

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

5, ????????: ????? ?????????, ?????????? ?? ????? ????? ????? ???????-???????. ??? ???? ???? ?????? ?? ????? ??????? ?? ???? ????? ?? ????? ??????, ?? ????? ?? ?????? ????? ????. ??????, ?????????? ?? ?? ????? ????? ????? ??????, ??????? ????? ?? ???? ???? ?????? ????????.

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