 |
| 声信号: 272 phrases in 36 subjects |
| Air defense | 12 |
| Archery | 1 |
| Architecture | 1 |
| Artificial intelligence | 1 |
| Automobiles | 9 |
| Aviation | 18 |
| Bridge card game | 5 |
| Business | 1 |
| Communications | 1 |
| Compressors | 1 |
| Construction | 1 |
| Drilling | 1 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 47 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Fishery fishing industry | 1 |
| General | 13 |
| Geophysics | 11 |
| Information technology | 1 |
| Metallurgy | 6 |
| Multimedia | 2 |
| Nautical | 3 |
| Navigation | 1 |
| Oil / petroleum | 11 |
| Otorhinolaryngology | 5 |
| Project management | 2 |
| Rowing | 1 |
| Shipbuilding | 1 |
| Space | 20 |
| Sports | 1 |
| Technology | 75 |
| Telecommunications | 12 |
| Transport | 1 |
| Weightlifting | 1 |