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| фоновая радиация (marimarina); фоновое излучение (marimarina) | |||
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rayonnement de fond : 35 phrases in 5 subjects |
| Analytical chemistry | 1 |
| Medical appliances | 6 |
| Nuclear physics | 14 |
| Physics | 2 |
| Радиоактивное излучение | 12 |
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