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| surface level of tail water | |||
| нижний уровень воды: 24 phrases in 12 subjects |
| Agriculture | 3 |
| Electronics | 2 |
| Energy industry | 3 |
| Geology | 2 |
| Hydraulic engineering | 1 |
| Hydrology | 1 |
| Makarov | 2 |
| Melioration | 3 |
| Oceanography & oceanology | 3 |
| Technology | 2 |
| Thermal engineering | 1 |
| Water resources | 1 |