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| распространение излучения в космосе | |||
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| space propagation: 15 phrases in 7 subjects |
| Astronautics | 1 |
| Electronics | 2 |
| Makarov | 2 |
| Nanotechnology | 3 |
| Natural resourses and wildlife conservation | 1 |
| Technology | 4 |
| Telecommunications | 2 |
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