| |||
| 电子数据通信 | |||
| |||
| 电子数据通信 | |||
|
electronic data communications : 10 phrases in 5 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Electronics | 4 |
| Space | 1 |
| Telecommunications | 1 |
| |||
| 电子数据通信 | |||
| |||
| 电子数据通信 | |||
|
electronic data communications : 10 phrases in 5 subjects |
| Air defense | 2 |
| Aviation | 2 |
| Electronics | 4 |
| Space | 1 |
| Telecommunications | 1 |