 |
| |||
| indication signal | |||
|
表示信号 : 16 phrases in 7 subjects |
| Air defense | 1 |
| Communications | 3 |
| General | 2 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 6 |
| Telecommunications | 1 |
|
| |||
| indication signal | |||
|
表示信号 : 16 phrases in 7 subjects |
| Air defense | 1 |
| Communications | 3 |
| General | 2 |
| Rail transport | 2 |
| Space | 1 |
| Technology | 6 |
| Telecommunications | 1 |