operational costs: 24 phrases in 15 subjects |
Accounting | 1 |
Airports and air traffic control | 1 |
Astronautics | 3 |
Aviation | 1 |
Corporate governance | 1 |
Economy | 3 |
Energy industry | 1 |
Forestry | 1 |
General | 1 |
Makarov | 1 |
Military | 5 |
Rail transport | 1 |
Technology | 1 |
Telecommunications | 1 |
Weapons of mass destruction | 2 |