 |
| |||
| retreating working | |||
| retreat mining; retreating (excavation) | |||
|
exploitation rabattante : 9 phrases, 2 sujets |
| Charbon | 3 |
| Métallurgie | 6 |
|
| |||
| retreating working | |||
| retreat mining; retreating (excavation) | |||
|
exploitation rabattante : 9 phrases, 2 sujets |
| Charbon | 3 |
| Métallurgie | 6 |