 |
| |||
| 信号识另 | |||
|
signal recognition : 23 phrases in 15 subjects |
| Agriculture | 2 |
| Air defense | 1 |
| Animal husbandry | 1 |
| Aviation | 3 |
| Biology | 1 |
| Chemistry | 1 |
| Electronics | 1 |
| Genetics | 2 |
| Geophysics | 1 |
| Life sciences | 1 |
| Military | 1 |
| Navigation | 1 |
| Space | 1 |
| Technology | 4 |
| Telecommunications | 2 |