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на единицу площади |
per acre: 88 phrases in 14 subjects |
Agriculture | 17 |
Economy | 10 |
Forestry | 15 |
General | 2 |
Hydrology | 1 |
Makarov | 21 |
Mining | 1 |
Oil / petroleum | 8 |
Oil and gas | 2 |
Oil and gas technology | 2 |
Sakhalin | 3 |
Technology | 2 |
Textile industry | 2 |
Water resources | 2 |