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| Кеплер | |||
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Kepler : 30 phrases in 11 subjects |
| Astronautics | 4 |
| Astronomy | 9 |
| Aviation | 1 |
| General | 1 |
| Makarov | 3 |
| Mathematics | 2 |
| Names and surnames | 2 |
| Nanotechnology | 1 |
| NASA | 2 |
| Physics | 4 |
| Telecommunications | 1 |
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