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| yet-to-find reserves (reserves = proved reserves + yet-to-find (undiscovered) reserves Ksylena); nondiscovered reserves (MichaelBurov); non-discovered reserves (MichaelBurov) | |||
| undiscovered reserves | |||
| неразведанные запасы: 8 phrases in 5 subjects |
| Geology | 3 |
| Makarov | 1 |
| Oil / petroleum | 1 |
| Oil and gas | 2 |
| Oil and gas technology | 1 |