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| English | Irish |
| light pollution | truailliú solais |
| naked light | lasair gan chosaint |
| separator of light liquids A mechanical device for separating and removing residues from fuel and lubricating oil from waste water coming from filling stations and industrial plants in order to avoid pollution of water bodies; this system is based on the different specific weights of water and fuel residues that float on the water and can be easily removed | deighilteoir leachtanna éadroma |
| ultraviolet light absorption method | modh ionsúite solais ultraivialait |