Inicio > Term: room-and-pillar mining
room-and-pillar mining
In coal and metal mining, supporting the roof by pillars left at regular intervals.
- Parte del discurso: noun
- Industria/ámbito: Minería
- Categoría: Minería general; Mineral mining
- Government Agency: USBM
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Creador
- ed.young
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(V.I.P) 21084 puntos - 100% positive feedback
(Milwaukee, United States)
