hard -surface: 63 phrases in 24 subjects |
Airports and air traffic control | 1 |
Architecture | 1 |
Armored vehicles | 2 |
Astronautics | 1 |
Automated equipment | 1 |
Automobiles | 1 |
Aviation | 2 |
Chemical industry | 1 |
Chemistry | 2 |
Construction | 3 |
Electronics | 1 |
General | 2 |
Household appliances | 1 |
Hovercraft | 1 |
Makarov | 15 |
Metallurgy | 1 |
Microelectronics | 4 |
Military | 4 |
Mining | 1 |
Oil / petroleum | 2 |
Oilfields | 1 |
Polygraphy | 1 |
Road works | 2 |
Technology | 12 |