Control Unit : 94 phrases in 15 subjects |
Astronautics | 3 |
Aviation | 14 |
Communications | 5 |
Computers | 1 |
Economics | 1 |
General | 2 |
ICAO | 1 |
Information technology | 15 |
Mechanic engineering | 1 |
Military | 41 |
Navigation | 1 |
Oil and gas | 3 |
Physics | 1 |
Technology | 4 |
Telecommunications | 1 |