 |
| |||
| 卫星警报系统 | |||
| satellite -warning system: 14 phrases in 5 subjects |
| Air defense | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Space | 6 |
| Technology | 2 |
|
| |||
| 卫星警报系统 | |||
| satellite -warning system: 14 phrases in 5 subjects |
| Air defense | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Space | 6 |
| Technology | 2 |