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.
- Μέρος του λόγου: noun
- Κλάδος/Τομέας: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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Δημιουργός
- ed.young
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(Milwaukee, United States)