Home > Term: pillar mining system
pillar mining system
Any of several systems, including the room-and-pillar system, the block system, and the bord-and-pillar system.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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- ed.young
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(Milwaukee, United States)
