 |
| |||
| 表示信号 | |||
| indication signal: 38 phrases in 9 subjects |
| Air defense | 3 |
| Communications | 4 |
| Electronics | 9 |
| Geophysics | 1 |
| Information technology | 3 |
| Rail transport | 4 |
| Space | 3 |
| Technology | 10 |
| Telecommunications | 1 |
|
| |||
| 表示信号 | |||
| indication signal: 38 phrases in 9 subjects |
| Air defense | 3 |
| Communications | 4 |
| Electronics | 9 |
| Geophysics | 1 |
| Information technology | 3 |
| Rail transport | 4 |
| Space | 3 |
| Technology | 10 |
| Telecommunications | 1 |