 |
| |||
| 高级通信系统 | |||
| 先进通信系统 | |||
| advanced communication system: 12 phrases in 6 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Space | 3 |
| Technology | 2 |
| United States | 1 |
|
| |||
| 高级通信系统 | |||
| 先进通信系统 | |||
| advanced communication system: 12 phrases in 6 subjects |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Space | 3 |
| Technology | 2 |
| United States | 1 |