? ????? ???? ??????, ???? ?? ????? ??????????, ????? ?????? ???? ? -90% ?????? ?????, ???? ???? ???? ???, ???? ????? ?????????, ????, ????? ??????? ????? ??????????, ???? ?? ???? ?????, ???? ????? ????? ??? ????, ???? ?????? ?? ????????? ?????, ?? ????? ????? ?? ?????, ????? ?? ????? ?? ???? ????? ??????. ??? ???, ??? ????? ?? ??? ???? ?????? ??????? ?? ?????????.
??????? ??????????: ????? ?????? ??"?, ??????? ?????????? ???????? ?? ????????? ????? ???? ??? ?? ??????? ??????? ?????? ?????, ???? ??? ? ???? ????? ?????.
?????? ?? ????? ?????????:
1. ???? ??
?????? ?????????? ??? 2.702gNaN3, ????? ????? ?????????? ??? ?? ???? ????, ????? ????????? ?? ???? ?? ???? ?????, ??? ?? ????? ???.
2. ?? ??????
?????????? ??? ????, ?? ?????? ??? ?????? ?? ??? ????? ?? ?????? ?? ?????? ????? ???????.
3. ?????? ???? ??????? ????
???? ????? ??? ?????? ??? ????? ?? ??? ?????????? ??????????.
4. ?????? ???? ????? ???
??? ?????? ?????????, ??????? ???? ??? ????? ????? ????, ?????? ??????? ?? ?????? ???? ?????? ???? ???? ???? ?????? ??????.
5. ??? ???????
??? ????????? ????? ?????, ???? ????????? ?? ????? ????? ??????? ?????.
6. ?????? ????
?????? ?????????? ?? ??????, ?????? ?????? ?? ????? ????????? ???? ???? ?????? ?????? ???? ?????? ?????.
????? ?? ????? ?????????:
???? ????? ???? ????? ???????? ????????, ??????????, ????? ????, ?????? ?????, ????? ?????, ????????, ????? ???? ?????, ?????, ???? ???, ??? ???????, ?????? ?????, ?????, ????? ??????, ??????, ????. ???? ??????? ????, ???? ?????, ???? ????????, ????????, ?????, ???????, ?? ???? ??????? ???, ????? ??, ????? ???? ???, ????? ???? ??????? ????? ??? ????.
????? ??? ?? ???? ????, ????? ????? ??? ', ??? ????? ??????????? Weihua. ?? ??? ???? ????? ???? ????? ??????, ???? ?????? ????? ????? ????? ??? ?? ?????.
??? ?????: 14 ??????? 2020

