contact switch: 82 phrases in 17 subjects |
Apollo-Soyuz | 1 |
Astronautics | 6 |
Automated equipment | 7 |
Aviation | 2 |
Construction | 3 |
Electrical engineering | 9 |
Electronics | 11 |
Makarov | 8 |
Mass media | 3 |
Mechanics | 1 |
Military | 1 |
Nautical | 2 |
Programming | 4 |
Rail transport | 3 |
Technology | 17 |
Telecommunications | 2 |
Transport | 2 |