 |
| |||
| горная порода; геологический материал; грунт | |||
| earth material: 5 phrases in 3 subjects |
| Astronautics | 1 |
| General | 1 |
| 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