 |
| sounders: 260 phrases in 35 subjects |
| Acoustics | 5 |
| Agriculture | 2 |
| Antennas and waveguides | 10 |
| Astronautics | 3 |
| Automobiles | 2 |
| Aviation | 1 |
| Communications | 3 |
| Computers | 5 |
| Ecology | 4 |
| Electronics | 16 |
| Firefighting and fire-control systems | 2 |
| Fish farming pisciculture | 7 |
| General | 5 |
| Geophysics | 2 |
| Hydrogeology | 1 |
| Hydrology | 6 |
| Makarov | 15 |
| Mass media | 10 |
| Meteorology | 1 |
| Metrology | 5 |
| Military | 24 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 2 |
| Nautical | 35 |
| Navigation | 13 |
| Oceanography & oceanology | 2 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Rail transport | 2 |
| Remote sensing | 1 |
| Security systems | 6 |
| Shipbuilding | 3 |
| Technology | 61 |
| Telecommunications | 2 |
| Telegraphy | 1 |