 |
|
flooding control : 84 phrases in 13 subjects |
| Construction | 3 |
| Ecology | 5 |
| Economics | 4 |
| Electronics | 4 |
| Finances | 2 |
| Hydraulic engineering | 17 |
| Hydrology | 1 |
| Makarov | 7 |
| Natural resourses and wildlife conservation | 5 |
| Nautical | 1 |
| Obsolete / dated | 1 |
| Technology | 26 |
| Water resources | 8 |