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| English | Portuguese |
| atmospheric tracer | marcador atmosférico |
| fluorocarbon tracer technique | técnica dos traçadores de fluorocarbonos |
| perfluorocarbon tracer | marcador de perfluorocarboneto |
| radioactive tracer | marcador radioativo |
| radioactive tracer | traçadores radioativos |
| radioactive tracer A radioactive isotope which, when injected into a biological or physical system, can be traced by radiation detection devices, permitting determination of the distribution or location of the substance to which it is attached | traçadores radioactivos |
| radioactive tracer technique | traçadores radioativos (técnicas |
| radioactive tracer technique | traçadores radioactivos (técnicas) |
| tracer aerosol | aerossol investigador |
| tracer method | método do gás traçador |