 |
| 声级: 412 phrases in 31 subjects |
| Acoustics | 4 |
| Air defense | 1 |
| Architecture | 4 |
| Automobiles | 46 |
| Aviation | 16 |
| Bridge construction | 1 |
| Business | 1 |
| Compressors | 8 |
| Construction | 3 |
| Earth sciences | 1 |
| Ecology | 9 |
| Electric machinery | 8 |
| Electronics | 27 |
| Environment | 1 |
| Explosives and Explosive Ordnance Disposal | 4 |
| General | 9 |
| Geophysics | 6 |
| Health care | 1 |
| Information technology | 3 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Nautical | 10 |
| Oil / petroleum | 5 |
| Otorhinolaryngology | 27 |
| Rail transport | 5 |
| Refrigeration | 10 |
| Space | 28 |
| Technology | 155 |
| Telecommunications | 1 |
| Textile industry | 4 |
| Wind Energy | 12 |