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| English | Spanish |
| fill and draw contact bed | filtro de contacto |
| fill and draw contact bed | lecho de contacto |
| fill factor | factor de ocupación del suelo |
| fill factor | índice de aprovechamiento de la superficie |
| fill factor | coeficiente de captación |
| mine filling | rellenado de minas |
| mine filling Filling of disused mines with soil, crushed stone, or waste materials in order to restore the geological, agricultural and landscape features of the concerned area | rellenado de minas |
| sanitary land-fill of waste tips | terraplenado sanitario de los vertederos |
| sanitary land-fill of waste tips | rellenado sanitario de los vertederos |