| |||
| aviation exploration | |||
| aeronautical research | |||
| |||
| aeronautical research | |||
|
авиационные исследования : 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 |