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бортовое содержание руды (Киселев) |
grade cut-off: 23 phrases in 12 subjects |
Aluminium industry | 1 |
Economy | 1 |
Fish farming pisciculture | 1 |
General | 2 |
Geology | 2 |
Geophysics | 1 |
Gold mining | 8 |
Makarov | 1 |
Mineral products | 1 |
Mining | 2 |
Ore formation | 1 |
Technology | 2 |