| | | | | | 〔 2012〕2 | 2020 | | | | | 12 | 31 | | | | 31 | | | | ( Internet of Tgings ) | （ ） | | （ | | | | | | | | | | | | | | | | | | | | | | （ ） | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 2020 7 6 | | |