- 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 special cage running in guides in a special compartment of a shaft with a separate winding engine.
Industry:Mining
A special case of the boundary line, in ternary systems, along which one of the two crystalline phases present reacts with the liquid, upon decreasing the temperature, to form the other crystalline phase.
Industry:Mining
A special case of the boundary line, in ternary systems, along which one of the two crystalline phases present reacts with the liquid, upon decreasing the temperature, to form the other crystalline phase.
Industry:Mining
A special case of the boundary line, in ternary systems, along which one of the two crystalline phases present reacts with the liquid, upon decreasing the temperature, to form the other crystalline phase.
Industry:Mining
A special chisel type of hammer used to separate the mineral in a lump from the gangue in the hand-picking of ores.
Industry:Mining
A special condition of a triaxial compression test in which no confining pressure is applied.
Industry:Mining
A special core barrel used to take soil samples, as in foundation testing. The inner tube is swivel mounted and nonrotating and extends through, and a short distance beyond, the bit. Hence, the bit only cuts clearance for the outer tube or core-barrel assembly, and the core taken by the inner tube is cut by a spudding action. The triple or core tube is mounted inside the inner tube to receive the core and is split longitudinally to facilitate removal of the core.
Industry:Mining
A special core barrel used to take soil samples, as in foundation testing. The inner tube is swivel mounted and nonrotating and extends through, and a short distance beyond, the bit. Hence, the bit only cuts clearance for the outer tube or core-barrel assembly, and the core taken by the inner tube is cut by a spudding action. The triple or core tube is mounted inside the inner tube to receive the core and is split longitudinally to facilitate removal of the core.
Industry:Mining
A special design of oven, used mainly for coking certain grades of coal.
Industry:Mining
A special diamond-drill rod used to set a deflecting wedge in a borehole.
Industry:Mining
