الصفحة الرئيسية > Term: shelter hole
shelter hole
In coal mining, a niche in the rib along a haulage road into which one may step to avoid passing trains. Also known as a manhole.
- قسم من أقسام الكلام: noun
- المجال / النطاق: التعدين
- الفئة: تعدين عام; Mineral mining
- Government Agency: USBM
0
المنشئ
- ed.young
-
(V.I.P) 21084 النقاط - 100% positive feedback
(Milwaukee, United States)
