controlling device : 15 phrases in 10 subjects |
Aviation medicine | 1 |
Combustion gas turbines | 2 |
Electrical engineering | 1 |
Information technology | 2 |
Nautical | 1 |
Oil and gas technology | 1 |
Polygraphy | 1 |
Programming | 2 |
Telecommunications | 3 |
Transport | 1 |