 |
| |||
| working face; breakage front; breakage face; stope; front face | |||
| coal face; coal head; coal wall; coalface | |||
|
Abbaufront : 6 phrases, 2 sujets |
| Charbon | 1 |
| Exploitation minière | 5 |
|
| |||
| working face; breakage front; breakage face; stope; front face | |||
| coal face; coal head; coal wall; coalface | |||
|
Abbaufront : 6 phrases, 2 sujets |
| Charbon | 1 |
| Exploitation minière | 5 |