services and maintenance: 25 phrases in 12 subjects |
Advertising | 1 |
Airports and air traffic control | 1 |
Aviation | 1 |
British usage, not spelling | 1 |
Computer networks | 1 |
Economy | 1 |
General | 5 |
Health care | 1 |
Makarov | 1 |
Military | 8 |
Sakhalin | 2 |
Technology | 2 |