Accueil > Term: back entry
back entry
The air course parallel to and below an entry or the entry used for secondary purposes in two-entry system of mining. Locally, any entry not having track in it.
- Partie du discours : noun
- Secteur d’activité/Domaine : Mines
- Catégorie : Exploitation minière; Mineral mining
- Government Agency: USBM
0
Créateur
- ed.young
-
(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
