Inicio > Term: secondary shaft
secondary shaft
The shaft that extends a mine downwards from the bottom of the primary shaft but not in line with the primary shaft.
- Parte del discurso: noun
- Industria/ámbito: Minería
- Categoría: Minería general; Mineral mining
- Government Agency: USBM
0
Creador
- ed.young
-
(V.I.P) 21084 puntos - 100% positive feedback
(Milwaukee, United States)
