 |
| rough surface: 57 phrases in 22 subjects |
| Aerohydrodynamics | 1 |
| Antennas and waveguides | 1 |
| Astronautics | 2 |
| Automated equipment | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Construction | 8 |
| Electronics | 1 |
| Forestry | 5 |
| General | 4 |
| Hydrology | 1 |
| Leather | 1 |
| Makarov | 8 |
| Mechanics | 5 |
| Medical | 2 |
| Microelectronics | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Physics | 2 |
| Road works | 3 |
| Seismology | 2 |
| Technology | 3 |