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просачивающая вода : 20 phrases in 9 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| General | 5 |
| Geology | 4 |
| Hydrology | 2 |
| Mining | 2 |
| Natural resourses and wildlife conservation | 2 |
| Road works | 1 |
| Technology | 2 |
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