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| Subject | English | Slovak |
| environ. | coal refining The processing of coal to remove impurities | úprava uhlia |
| stat., ed., chem. | electro-refining | elektro-rafinovanie |
| environ. | oil refining The separation of petroleum mixtures into their component parts | rafinácia ropy |
| econ. | oil refining | rafinácia ropy |
| gen. | refining process | proces rafinovania |
| econ. | sugar refining | rafinácia cukru |