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| watershed | |||
| cachment basin | |||
| watershed The dividing line between two adjacent river systems, such as a ridge | |||
| catchment area; catchment basin; hydrological basin; hydrographic basin | |||
| collecting area; drain district; drainage area; drainage basin; drainage district; gathering area; gathering grounds | |||
| basin river | |||
| river basin | |||
| catchment basin | |||
| cuenca fluvial: 11 a las frases, 5 temas |
| Ambiente | 6 |
| Ciencias de la vida | 1 |
| Construcción | 1 |
| Recursos hídricos | 2 |
| Transporte | 1 |