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| удельная активность | |||
| удельная радиоактивность | |||
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比 放 射性 : 24 phrases in 6 subjects |
| Electronics | 3 |
| General | 12 |
| Geophysics | 1 |
| Military | 3 |
| Nuclear and fusion power | 1 |
| Technology | 4 |
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