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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 ...
Special type of seismometer that is used when recording in a borehole.
Industry:Mining
Special, hollow, cylindrical fireclay brick, between the bottom fountain brick and the first lateral brick in a bottom-pour ingot assembly.
Industry:Mining
Specially shaped copper slabs used as anodes in electrolytic refinement, and resulting from the refinement of blister copper in a reverberatory furnace.
Industry:Mining
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Specially shaped hoe used for working gravel in the sluice in Japan.
Industry:Mining
Specially shaped steel bars which, when laid parallel on crossties and fastened, form a track for vehicles with flanged wheels.
Industry:Mining
Specially shaped steel plates for joining the end of one rail to the next rail in the track. The fishplates are fixed (one on each side) to overlap the rail ends and bolted through the rails.
Industry:Mining
Specif., an alloy containing no iron. Generically, any alloy that has as its base any element other than iron. Common commercial nonferrous alloys are based upon aluminum, copper, lead, magnesium, nickel, tin, and zinc.
Industry:Mining
Specific training given to a miner prior to performing a task where the worker has had no previous work experience. Compare: new miner training; refresher training.
Industry:Mining
Specific value of the resistance of the rock to the explosive force, determined by trial blasting. It is a function of maximum burden, hole depth, quantity of explosive (degree of packing), and throw.
Industry:Mining
Specific wavelengths of electromagnetic radiation have precisely the energy to cause atomic or molecular transitions in substances they are passing through; their removal from the incident radiation produces reductions in intensity of those wavelengths, or absorption spectra, characteristic of the substance under study. Compare: emission spectra
Industry:Mining
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