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| radioactive substance Any substance that contains one or more radionuclides of which the activity or the concentration cannot be disregarded as far as radiation protection is concerned | |||
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sustancias radiactivas : 15 phrases, 4 sujets |
| Électronique | 4 |
| Environnement | 5 |
| Loi | 2 |
| Physique nucléaire | 4 |