power box : 48 phrases in 18 subjects |
Agriculture | 1 |
Armored vehicles | 1 |
Astronautics | 7 |
Aviation | 1 |
Construction | 2 |
Electrical engineering | 2 |
Electronics | 2 |
General | 4 |
Machinery and mechanisms | 1 |
Military | 4 |
Nautical | 3 |
Occupational health & safety | 4 |
Rail transport | 4 |
Shipbuilding | 1 |
Technology | 7 |
Telecommunications | 2 |
Textile industry | 1 |
Ventilation | 1 |