首页 > Term: sumpman
sumpman
In metal mining, a person who installs sets of timbers to support the walls of a shaft, working with the shaft sinking crew and installing the timbers as the work advances.
- 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)