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| upper-air observations | |||
| наблюдение верхних слоев атмосферы: 7 phrases in 5 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 1 |
| Ecology | 1 |
| Navigation | 1 |
| Physics | 3 |
|
| |||
| upper-air observations | |||
| наблюдение верхних слоев атмосферы: 7 phrases in 5 subjects |
| Aerohydrodynamics | 1 |
| Astronautics | 1 |
| Ecology | 1 |
| Navigation | 1 |
| Physics | 3 |