![]() |
|
keystone : 112 phrases in 37 subjects |
| Air defense | 2 |
| American usage, not spelling | 1 |
| Archaeology | 2 |
| Architecture | 2 |
| Armored vehicles | 1 |
| Astronautics | 1 |
| Automobiles | 2 |
| Bridge construction | 1 |
| Cables and cable production | 1 |
| Caspian | 1 |
| Construction | 4 |
| Ecology | 2 |
| Education | 1 |
| Electronics | 3 |
| Forestry | 1 |
| General | 9 |
| Geology | 1 |
| Informal | 2 |
| Leather | 2 |
| Literature | 1 |
| Makarov | 8 |
| Mass media | 11 |
| Mathematics | 2 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 3 |
| Oil and gas technology | 1 |
| Physics | 1 |
| Quality control and standards | 1 |
| Radioengineering | 2 |
| Rail transport | 1 |
| Robotics | 1 |
| Technology | 27 |
| Telecommunications | 2 |
| Television | 8 |
| Transport | 1 |