 |
| |||
| 跟踪数据 | |||
|
track data : 26 phrases in 12 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Cartography | 1 |
| Cryosphere | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Fishery fishing industry | 4 |
| Oil / petroleum | 1 |
| Space | 5 |
| Technology | 2 |
| Television | 1 |
| United States | 1 |
|
| |||
| 跟踪数据 | |||
|
track data : 26 phrases in 12 subjects |
| Air defense | 2 |
| Aviation | 3 |
| Cartography | 1 |
| Cryosphere | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Fishery fishing industry | 4 |
| Oil / petroleum | 1 |
| Space | 5 |
| Technology | 2 |
| Television | 1 |
| United States | 1 |