digital readout: 55 phrases in 13 subjects |
Automated equipment | 17 |
Aviation medicine | 2 |
Geophysics | 1 |
Gyroscopes | 1 |
Makarov | 1 |
Mechanic engineering | 1 |
Mechanics | 2 |
Metrology | 3 |
Military | 1 |
Nautical | 1 |
Quality control and standards | 1 |
Technology | 18 |
Transport | 6 |