| |||
| 识别信号源 | |||
| 辨识信号源 | |||
|
identification source : 18 phrases in 9 subjects |
| Air defense | 1 |
| Ecology | 2 |
| Electronics | 2 |
| Environment | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
| Telecommunications | 1 |
| Water resources | 1 |
| |||
| 识别信号源 | |||
| 辨识信号源 | |||
|
identification source : 18 phrases in 9 subjects |
| Air defense | 1 |
| Ecology | 2 |
| Electronics | 2 |
| Environment | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Technology | 8 |
| Telecommunications | 1 |
| Water resources | 1 |