- 行业: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
A head covering made of reinforced sheet aluminum or plastic-impregnated fabric and shaped somewhat like a sun helmet; worn for protection and/or to reduce the severity of head injuries from falling objects.
Industry:Mining
A heading driven horizontally or nearly so, through or across inclined strata.
Industry:Mining
A heading driven in rock. In S. Wales and elsewhere, men employed in hard headings have suffered greatly from silicosis.
Industry:Mining
A heading driven in rock. In S. Wales and elsewhere, men employed in hard headings have suffered greatly from silicosis.
Industry:Mining
A headway or bord laid with rails, and used for conveying the coal cars to and from the face.
Industry:Mining