Home > 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.
- Part of Speech: noun
- Industry/Domain: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Creator
- ed.young
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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
