首页 > Term: hanging wall drift
hanging wall drift
In the United States, a horizontal gallery driven in the hanging wall of a vein.
- 词性: noun
- 行业/领域: 采矿
- 类别 一般矿业; Mineral mining
- Government Agency: USBM
0
创建者
- ed.young
- 100% positive feedback
(Milwaukee, United States)