首页 > Term: swallow
swallow
Derb. A loose, broken, or porous place in a vein. It derives its name from the ease with which water sinks through the loose material.
- 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)