Home > Term: main levels
main levels
The first and leading excavations in mines that are made for the purpose of opening out or winning the material being mined, and that are intended to be the principal roadways of the mine.
- 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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(V.I.P) 21084 points - 100% positive feedback
(Milwaukee, United States)
