 |
| |||
| flood prevention | |||
| предупреждение паводка: 7 phrases in 4 subjects |
| Ecology | 3 |
| Hydraulic engineering | 1 |
| Natural resourses and wildlife conservation | 2 |
| Water resources | 1 |
|
| |||
| flood prevention | |||
| предупреждение паводка: 7 phrases in 4 subjects |
| Ecology | 3 |
| Hydraulic engineering | 1 |
| Natural resourses and wildlife conservation | 2 |
| Water resources | 1 |