- 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 rectangular or sometimes circular form of column, constructed usually of concrete, hard brickwork, or masonry, and designed to support heavy concentrated loads from arches or a bridge superstructure.
Industry:Mining
A rectangular oven with end doors and side flues for the manufacture of coke.
Industry:Mining
A rectangular piece of cast iron 5 to 6 in (12.7 to 15.24 cm) across, usually rounded fore and aft with an eye on the back and with a wooden handle; used for grinding ore on a cast-iron bucking board.
Industry:Mining
A rectifier that changes single-phase alternating current into pulsating unidirectional current, utilizing both halves of each cycle.
Industry:Mining
A rectifier that changes single-phase alternating current into pulsating unidirectional current, utilizing only one-half of each cycle.
Industry:Mining
A red mud to which lime, caustic soda, or quebracho, has been added. The pH is usually 12.0 to 13.0.
Industry:Mining
A red or brownish-red variety of quartz containing inclusions of hematite. Also spelled sinopal; sinopel.
Industry:Mining
A red or scarlet earthy substance, probably a mixture of copper antimonate and cinnabar; said to occur in some Chilean ore deposits.
Industry:Mining
