 |
| |||
| avancement de la taille; avancement du front de dépilage | |||
| longueur de recouvrement d'axe | |||
| face advance: 16 phrases in 4 subjects |
| Coal | 10 |
| Construction | 1 |
| General | 4 |
| Mechanic engineering | 1 |
|
| |||
| avancement de la taille; avancement du front de dépilage | |||
| longueur de recouvrement d'axe | |||
| face advance: 16 phrases in 4 subjects |
| Coal | 10 |
| Construction | 1 |
| General | 4 |
| Mechanic engineering | 1 |