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aeronautical research | |||
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aviation exploration | |||
aeronautical research |
авиационное исследование: 51 phrases in 10 subjects |
Astronautics | 9 |
Aviation | 2 |
Aviation medicine | 5 |
Ecology | 1 |
General | 4 |
Medical | 1 |
Meteorology | 1 |
Military | 23 |
Natural resourses and wildlife conservation | 1 |
Technology | 4 |