首页 > Term: narrow stall
narrow stall
A stall driven in solid coal, usually from 6 to 9 ft (1.8 to 2.7 m) wide; it has rib sides in coal.
- 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
-
(V.I.P) 21084 分数 - 100% positive feedback
(Milwaukee, United States)
