 |
| |||
| вторичное горное давление; давление кровли | |||
| weight of roof: 10 phrases in 2 subjects |
| General | 2 |
| Makarov | 8 |
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