Drehzahl: 50 phrases in 12 subjects |
Astronautics | 2 |
Automated equipment | 1 |
Aviation | 1 |
Communications | 1 |
Earth sciences | 6 |
Electronics | 1 |
Information technology | 3 |
Measuring instruments | 3 |
Mechanic engineering | 21 |
Natural sciences | 2 |
Technology | 1 |
Transport | 8 |