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обломок породы : 98 phrases in 21 subjects |
| American usage, not spelling | 1 |
| Astronomy | 1 |
| Cement | 2 |
| Drilling | 2 |
| Ecology | 1 |
| General | 2 |
| Geology | 27 |
| Gold mining | 8 |
| Makarov | 18 |
| Mining | 6 |
| Nautical | 2 |
| Navigation | 3 |
| Oil / petroleum | 11 |
| Oil and gas | 4 |
| Oil and gas technology | 1 |
| Oilfields | 1 |
| Road works | 2 |
| Seismology | 1 |
| Technology | 3 |
| Volcanology | 1 |
| Water resources | 1 |