 |
| level surface: 61 phrases in 25 subjects |
| Agrochemistry | 1 |
| Automobiles | 3 |
| Aviation | 1 |
| Cartography | 1 |
| Construction | 10 |
| Disapproving | 1 |
| Ecology | 2 |
| Electronics | 1 |
| General | 3 |
| Geology | 3 |
| Geophysics | 2 |
| Makarov | 5 |
| Medical | 1 |
| Military | 2 |
| Mining | 1 |
| Nautical | 1 |
| Navigation | 3 |
| Oil and gas technology | 1 |
| Physics | 4 |
| Programming | 1 |
| Pulp and paper industry | 2 |
| Road works | 1 |
| Solid-state physics | 1 |
| Technology | 9 |
| Weapons of mass destruction | 1 |