 |
| |||
| radio spectrum (примерно от 3 кГц до 3000 ГГц) | |||
| radio spectrum; radio-frequency spectrum | |||
| спектр радиочастот: 7 phrases in 4 subjects |
| Astronautics | 1 |
| Communications | 2 |
| Information security and data protection | 2 |
| Security systems | 2 |
|
| |||
| radio spectrum (примерно от 3 кГц до 3000 ГГц) | |||
| radio spectrum; radio-frequency spectrum | |||
| спектр радиочастот: 7 phrases in 4 subjects |
| Astronautics | 1 |
| Communications | 2 |
| Information security and data protection | 2 |
| Security systems | 2 |