 |
| затухание сигнала: 40 phrases in 17 subjects |
| Acoustics | 1 |
| Astronautics | 1 |
| Aviation | 2 |
| Cables and cable production | 3 |
| Communications | 2 |
| Electrical engineering | 4 |
| Electronics | 1 |
| Household appliances | 2 |
| Information technology | 1 |
| Mass media | 12 |
| Mathematics | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Quality control and standards | 1 |
| Technology | 3 |
| Telecommunications | 3 |
| Television | 1 |