 |
| seismic station: 15 phrases in 9 subjects |
| Caspian | 1 |
| General | 1 |
| Geophysics | 2 |
| Military | 5 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |
| Seismology | 1 |
| Technology | 1 |
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