 |
| |||
| voice-frequency carrier | |||
| несущая звуковой частоты: 20 phrases in 7 subjects |
| Astronautics | 1 |
| Electronics | 7 |
| Household appliances | 2 |
| Information technology | 1 |
| Mass media | 5 |
| Technology | 3 |
| Television | 1 |
|
| |||
| voice-frequency carrier | |||
| несущая звуковой частоты: 20 phrases in 7 subjects |
| Astronautics | 1 |
| Electronics | 7 |
| Household appliances | 2 |
| Information technology | 1 |
| Mass media | 5 |
| Technology | 3 |
| Television | 1 |