 |
| |||
| 连续信号 | |||
|
continuous signal : 16 phrases in 8 subjects |
| Air defense | 5 |
| Automated equipment | 1 |
| Automatic control | 2 |
| Communications | 1 |
| Electronics | 2 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
|
| |||
| 连续信号 | |||
|
continuous signal : 16 phrases in 8 subjects |
| Air defense | 5 |
| Automated equipment | 1 |
| Automatic control | 2 |
| Communications | 1 |
| Electronics | 2 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |