 |
| |||
| frequency inversion | |||
| частотная инверсия: 14 phrases in 3 subjects |
| Geophysics | 3 |
| Information security and data protection | 2 |
| Security systems | 9 |
|
| |||
| frequency inversion | |||
| частотная инверсия: 14 phrases in 3 subjects |
| Geophysics | 3 |
| Information security and data protection | 2 |
| Security systems | 9 |