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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 ...
Wedge-shaped device used to deflect and guide a drill bit away from vertical; procedure of deflecting a hole. Compare: arc cutter
Industry:Mining
Wedge-shaped glass cell used in absorption spectrography.
Industry:Mining
Weighing and combining the correct proportion of cement and aggregate in a concrete mix.
Industry:Mining
Weight of a powder that is filled into a container under stated conditions.
Industry:Mining
Weight of dry air flowing per unit time. Measured in kilograms per second.
Industry:Mining
Weight of matte expressed as a percentage of the total charge.
Industry:Mining
Weight or tonnage ratio (K) of the weight of feed (F) to the weight of concentration (C) produced: K = F/C, for a two-product treatment.
Industry:Mining
Well-known brand of quicksetting cement for sealing rock cavities, plugging drill holes, etc. Is made from bauxite ore and limestone and is highly resistant to acids and heat.
Industry:Mining
Well-surveying device for large-diameter holes that determines the departure of the borehole from vertical. Uses a gyroscope and spherical level with a photographic record made on 16-mm moving-picture film, which includes a photograph of a small watch by which the depth is determined from correlation with a synchronized depth-time record made at surface.
Industry:Mining
Western United States. The survey line by which a section of government land is divided into quarter sections.
Industry:Mining
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