 |
| водосборная площадь: 10 phrases in 5 subjects |
| Geology | 4 |
| Hydraulic engineering | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| Water resources | 1 |
|
| водосборная площадь: 10 phrases in 5 subjects |
| Geology | 4 |
| Hydraulic engineering | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 1 |
| Water resources | 1 |