| |||
| retreating working | |||
| retreat mining; retreating (excavation) | |||
|
exploitation rabattante : 9 phrases in 2 subjects |
| Coal | 3 |
| Metallurgy | 6 |
| |||
| retreating working | |||
| retreat mining; retreating (excavation) | |||
|
exploitation rabattante : 9 phrases in 2 subjects |
| Coal | 3 |
| Metallurgy | 6 |