- 行业: Mining
- Number of terms: 33118
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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 ...
The physical properties of a cake as measured by toughness, slickness, and brittleness.
Industry:Mining
The pipe that ejects the jet of water through the bit, used in wash boring.
Industry:Mining
The pit below the shaft station where heavy weights are attached to the guide ropes to keep them taut. Roughly, the weight needed is 1 st for each 1,000 ft (1.97 t per 1,000 m) of rope.
Industry:Mining
The pithead, and in particular, the mouth of the shaft. The edge or brow of a pit.
Industry:Mining
The Pittsburgh coal which outcrops prominently in the vicinity of Pittsburgh and extends under a large area of western Pennsylvania, northern West Virginia, northwestern Maryland, and eastern Ohio. It belongs in the Carboniferous system, Pennsylvanian series, at the base of the Monongahela formation.
Industry:Mining
The place at which mining is being done in a breast, gangway, airway, chute, heading, drift, adit, crosscut, etc.
Industry:Mining
The place in a borehole where the first intentional deviation starts. Sometimes abbreviated KOP.
Industry:Mining
The place of origin within the Earth of an earthquake; usually some more or less restricted area of a fault surface. If the focus is to be some particular point, it is the central point of the area over which fault movement occurred and caused the earthquake.
Industry:Mining
