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| скрытая структура | |||
| поднавесье (= поднавес); поднавес | |||
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covered structure : 12 phrases in 8 subjects |
| Astronautics | 2 |
| Makarov | 2 |
| Military | 1 |
| Nanotechnology | 1 |
| Natural resourses and wildlife conservation | 1 |
| Soil science | 1 |
| Technology | 3 |
| Water resources | 1 |