9 | 3 | ︽ | ︾ | | | | | | 《 ︾ | | | | | | | | | | | | | 2019 6 | 2 9 | 30 | 100 | 1000 | | | | | | | | 2000 | 4 | | | | | | | 2019 6 300 | | INES 2 | | | | | | |