 |
| |||
| aerospace control | |||
| 航空航 天 管理: 23 phrases in 8 subjects |
| Air defense | 3 |
| Aviation | 12 |
| Desert science | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| United States | 2 |
| Weapons of mass destruction | 1 |
|
| |||
| aerospace control | |||
| 航空航 天 管理: 23 phrases in 8 subjects |
| Air defense | 3 |
| Aviation | 12 |
| Desert science | 1 |
| Electronics | 1 |
| Oil / petroleum | 1 |
| Space | 2 |
| United States | 2 |
| Weapons of mass destruction | 1 |