| mire(noun, feature, water, system) |
| river(noun, feature, water, system) |
| running-water system(expression, feature, water, system) |
| stream(noun, feature, water, system) |
| swamp(noun, feature, water, system) |
| underground stream(expression, feature, water, system) |
| use of fresh water(expression, feature, water, system, resource) |
| Lake tanganyika(expression, water, ecoregion, ecosystem) |
| Lower congo rapids(expression, water, ecoregion, ecosystem) |
| Niger delta(expression, water, ecoregion, ecosystem) |
| Nile delta(expression, water, ecoregion, ecosystem) |
| Thysville caves(expression, water, ecoregion, ecosystem) |
| convert brackish water into fresh water(expression, feature, water, system) |
| convert salty water into fresh water(expression, feature, water, system) |
| fresh-salt water interface(expression, feature, water, system) |
| fresh cooling water system(expression, feature, water, system) |
| fresh water capacity(expression, feature, water, system) |
| fresh water catfish(expression, feature, water, system) |
| fresh water drilling fluid(expression, feature, water, system) |
| fresh water drilling mud(expression, feature, water, system) |