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| natural radioactivity Radiation stemming mainly from uranium, present in small amounts in many rocks, soils, building material, etc. | |||
| background radiation | |||
| natural activity | |||
| natural radioactivity | |||
| French thesaurus | |||
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| Rayonnements nucléaires ou ionisants émis par le corps lui-même ou l'environnement, auxquels les individus sont exposés en permanence. (FRA) | |||
| radioactivité naturelle: 1 phrase in 1 subject |
| Electronics | 1 |
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