| |||
subsurface water; underground water; groundwater | |||
phreatic water | |||
ground water | |||
| |||
ground water; ground water flow; ground water level |
agua freatica: 10 do fraz, 5 tematyki |
Nauka o ziemi | 4 |
Nauki o życiu | 1 |
Ochrona środowiska | 2 |
Rolnictwo | 2 |
Zasoby wodne | 1 |