首页 > Term: caving ground
caving ground
Rock formations that will not stand in the walls of an underground opening without support, such as that offered by cementation, casing, or timber.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
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创建者
- ed.young
- 100% positive feedback
(Milwaukee, United States)