|
contact switch : 105 phrases in 19 subjects |
| Apollo-Soyuz | 1 |
| Astronautics | 6 |
| Automated equipment | 7 |
| Aviation | 3 |
| Construction | 3 |
| Electrical engineering | 18 |
| Electricity | 1 |
| Electronics | 14 |
| Makarov | 9 |
| Mass media | 3 |
| Measuring instruments | 1 |
| Mechanics | 1 |
| Military | 1 |
| Nautical | 2 |
| Programming | 8 |
| Rail transport | 3 |
| Technology | 20 |
| Telecommunications | 2 |
| Transport | 2 |