 |
| |||
| primary floatation | |||
| primary flotation | |||
| первичная флотация: 8 phrases, 4 sujets |
| Exploitation minière | 1 |
| Extraction d'extr. | 4 |
| Métallurgie | 2 |
| Technologie | 1 |
|
| |||
| primary floatation | |||
| primary flotation | |||
| первичная флотация: 8 phrases, 4 sujets |
| Exploitation minière | 1 |
| Extraction d'extr. | 4 |
| Métallurgie | 2 |
| Technologie | 1 |