 |
| |||
| double-frequency change | |||
| двойное преобразование частоты: 18 phrases in 6 subjects |
| Astronautics | 1 |
| Electronics | 4 |
| Makarov | 1 |
| Mass media | 1 |
| Technology | 5 |
| Telecommunications | 6 |
|
| |||
| double-frequency change | |||
| двойное преобразование частоты: 18 phrases in 6 subjects |
| Astronautics | 1 |
| Electronics | 4 |
| Makarov | 1 |
| Mass media | 1 |
| Technology | 5 |
| Telecommunications | 6 |