 |
| water- supply sources: 11 phrases in 8 subjects |
| Construction | 1 |
| Ecology | 2 |
| Firefighting and fire-control systems | 1 |
| General | 3 |
| Hydrology | 1 |
| Medical | 1 |
| Water resources | 1 |
| Water supply | 1 |
|
| water- supply sources: 11 phrases in 8 subjects |
| Construction | 1 |
| Ecology | 2 |
| Firefighting and fire-control systems | 1 |
| General | 3 |
| Hydrology | 1 |
| Medical | 1 |
| Water resources | 1 |
| Water supply | 1 |