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medium formation (категория буримости) | |||
intermediate rock; neutral rock | |||
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medium rock |
средняя порода: 35 phrases in 14 subjects |
Agriculture | 5 |
Animal husbandry | 1 |
Drilling | 5 |
Geology | 4 |
Gold mining | 1 |
Makarov | 2 |
Mining | 1 |
Oil / petroleum | 6 |
Oil and gas technology | 3 |
Oilfields | 3 |
Petrography | 1 |
Sakhalin | 1 |
Sakhalin R | 1 |
Technology | 1 |