- 업종: 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 galvanizing process in which the metal to be coated is heated, with or without tumbling, in contact with zinc dust.
Industry:Mining
A gamma-ray counter device built into a watertight case small enough in diameter to be lowered into a borehole.
Industry:Mining
A gangway driven obliquely across the workings to a higher level, or a gangway driven between two lifts and sending its coal down to the gangway below through a chute.
Industry:Mining
A gantry constructed for carrying a portal crane or a similar structure.
Industry:Mining
A gas cavity or vesicle, in an igneous rock, that is filled with such secondary minerals as calcite, quartz, chalcedony, or a zeolite. The term amygdale is preferred in British usage.
Industry:Mining
A gas cavity or vesicle, in an igneous rock, that is filled with such secondary minerals as calcite, quartz, chalcedony, or a zeolite. The term amygdale is preferred in British usage.
Industry:Mining
A gas flame that will introduce carbon into some heated metals such as during a gas welding operation. A carburizing flame is a reducing flame, but a reducing flame is not necessarily a carburizing flame.
Industry:Mining
