 |
| |||
| under conditions of high altitude; under low-pressure conditions | |||
| в высотных условиях: 7 phrases in 3 subjects |
| Astronautics | 1 |
| Military | 3 |
| Nanotechnology | 3 |
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