 |
| |||
| outer tube | |||
| tube extérieur: 7 phrases in 6 subjects |
| Agriculture | 1 |
| Coal | 1 |
| Electronics | 1 |
| Metallurgy | 2 |
| Technology | 1 |
| Радиоактивное излучение | 1 |
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