| | | 50°01′~ | 53°26′ 119°07′~ 121°49′ | | | | | | 1500km | | | | 1. | | | 24 | 29% | 9 | | | 21 | | 839 22538 | | 15 3 | | 19264 | 10750 | 20 | 105 | 25.2 | | | 11 | 57% | | | 48 | 7 6 35 | 2. | 282.65 | 125 130 50% 52% | | | | 21.6 5 | 10 100 | 30 5 | | | 3. | | | | | 545.71 209.02 | 4553.9 | 409 | | | | | | | | | | 50 | | | | | | 1934 | | | | | 14 5000 1986 | | | | | 1000 1600 | | | | | | | | | | 2001 | | | | | | | | | | | 1954 1955 | 20 | | 30 | 1986 | | | | 8 | | | | | | 4000 | 4% 3 | 305 7702.5 | 18 | 50% 40 48% | 4. | | 2023 -3.9℃ -1.1℃ | 147.4 410.7 2405 | 2957 | | | | | | | | |