 |
| |||
| подъём орбиты | |||
| orbit ascent: 13 phrases in 3 subjects |
| Astronautics | 7 |
| Aviation | 2 |
| Nanotechnology | 4 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips