首页 > Term: riffle bars
riffle bars
Slats of wood nailed across the bottom of a cradle or other gold-washing machine for the purpose of detaining the gold.
- 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)