 |
|
main trunk : 32 phrases in 21 subjects |
| Armored vehicles | 1 |
| Automated equipment | 1 |
| Aviation | 1 |
| Construction | 4 |
| Ecology | 1 |
| Electrical engineering | 2 |
| Electronics | 1 |
| General | 1 |
| Hydraulic engineering | 1 |
| Makarov | 1 |
| Medical | 1 |
| Meteorology | 1 |
| Military | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Rail transport | 5 |
| Road works | 2 |
| Sanitation | 1 |
| Technology | 3 |
| Water resources | 1 |