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| экологическая зона | |||
| ecological zone: 11 phrases in 8 subjects |
| Climatology | 1 |
| Ecology | 2 |
| Environment | 1 |
| General | 2 |
| Geography | 1 |
| Makarov | 1 |
| Oil and gas | 2 |
| Water resources | 1 |
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