control surface : 49 phrases in 11 subjects |
Aviation | 5 |
Communications | 2 |
Computer numerical control | 1 |
Earth sciences | 4 |
Electronics | 1 |
Information technology | 2 |
Mechanic engineering | 9 |
Natural sciences | 1 |
Paragliding | 2 |
Transport | 18 |
Water resources | 4 |