 |
| |||
| нижний контур симметричного меридионального сечения; нижний контур сечения ОС плоскостью симметрии | |||
|
bottom centerline : 5 phrases in 2 subjects |
| Astronautics | 2 |
| 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