 |
| |||
| vitesse quasi sonique | |||
| vitesse transsonique | |||
|
околозвуковая скорость : 17 phrases in 4 subjects |
| Astronautics | 1 |
| Aviation | 11 |
| Military | 1 |
| Technology | 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