9 1 | | | | | | | | | | 30 7 | 50 | | | 70 | | 3 80% | 350 | | C919 | | | 5000 | | | | 5 | 20 | | 2018 13.2 | 1949 5 485 | 1949 60 4945 1950 | 412 | | |