 |
| 电声的: 41 phrases in 14 subjects |
| Air defense | 1 |
| Architecture | 2 |
| Aviation | 1 |
| Ecology | 1 |
| Electric machinery | 1 |
| Electronics | 3 |
| General | 11 |
| Geophysics | 5 |
| Nautical | 1 |
| Navigation | 1 |
| Otorhinolaryngology | 1 |
| Steel production | 1 |
| Technology | 6 |
| Telecommunications | 6 |
|
| 电声的: 41 phrases in 14 subjects |
| Air defense | 1 |
| Architecture | 2 |
| Aviation | 1 |
| Ecology | 1 |
| Electric machinery | 1 |
| Electronics | 3 |
| General | 11 |
| Geophysics | 5 |
| Nautical | 1 |
| Navigation | 1 |
| Otorhinolaryngology | 1 |
| Steel production | 1 |
| Technology | 6 |
| Telecommunications | 6 |