 |
| |||
| zero-offset surveying technique | |||
| способ центрального луча: 7 phrases in 3 subjects |
| Geophysics | 5 |
| Intelligence and security services | 1 |
| Seismology | 1 |
|
| |||
| zero-offset surveying technique | |||
| способ центрального луча: 7 phrases in 3 subjects |
| Geophysics | 5 |
| Intelligence and security services | 1 |
| Seismology | 1 |