upload
United States Bureau of Mines
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 drill bit in which the diamond-set crown is formed on a bit blank by pouring molten metal into a prepared mold.
Industry:Mining
A drill chuck having three serrated-face movable jaws that can be made to grip and hold fast an inserted drill rod.
Industry:Mining
A drill chuck that, when closed, automatically positions the drill rod in the center of the drive rod of a diamond-drill swivel head.
Industry:Mining
A drill column that is set horizontally instead of vertically in an underground workplace.
Industry:Mining
A drill derrick divided into two or more sections, made so that the uppermost sections nest successively into the lower sections. In use, the sections are extended and locked into place to form a tall derrick and when moved are nested to form a unit length transportable on a single truck.
Industry:Mining
A drill equipped for cable-tool and/or diamond-drilling operations, or for a cable-tool and/or rotary drilling operations.
Industry:Mining
A drill equipped for cable-tool and/or diamond-drilling operations, or for a cable-tool and/or rotary drilling operations.
Industry:Mining
A drill hole charged with explosives, in which all or part of the explosive has failed to detonate.
Industry:Mining
A drill hole charged with explosives, in which all or part of the explosive has failed to detonate.
Industry:Mining
A drill hole charged with explosives, in which all or part of the explosive has failed to detonate.
Industry:Mining
© 2024 CSOFT International, Ltd.