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| вторичное гамма-излучение | |||
| вторичное γ-излучение; вторичные гамма-лучи; вторичные γ-лучи | |||
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| вторичные лучи | |||
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secondary ?- rays : 12 phrases in 9 subjects |
| Astronautics | 1 |
| Astronomy | 1 |
| Electronics | 1 |
| Makarov | 2 |
| Mining | 1 |
| Nuclear physics | 1 |
| Oilfields | 1 |
| Radiation | 3 |
| Technology | 1 |