 |
| |||
| единые правила охраны недр (Yeldar Azanbayev) | |||
| unified rules of subsurfaces resources protection: 3 phrases, 2 sujets |
| Général | 1 |
| Production | 2 |
|
| |||
| единые правила охраны недр (Yeldar Azanbayev) | |||
| unified rules of subsurfaces resources protection: 3 phrases, 2 sujets |
| Général | 1 |
| Production | 2 |