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United States Bureau of Mines
Industry: 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 ...
The rope used for supporting and hoisting the boom on jib cranes and excavators.
Industry:Mining
The rotary washing screen is cylindrical in shape and made of three sections--a scrubber, a sand jacket, and a gravel-screening section--mounted on a steel frame.
Industry:Mining
The rotating time actually spent in deepening a borehole. (Long, 1960)
Industry:Mining
The rotation of the plane of polarization per centimeter per unit magnetic field in the Faraday effect. The value of the constant varies with temperature and is approx. proportional to the square of the wavelength of the light.
Industry:Mining
The rough trimming of blocks of dimension stone.
Industry:Mining
The row of drill holes above the mining holes in a tunnel face.
Industry:Mining
The row of drill holes in a tunnel face, located below the breaking-down holes.
Industry:Mining
The running together of ore matter into a mass when the ore is only heated for calcination. Compare: loup
Industry:Mining
The salt core of a salt dome.
Industry:Mining
The same as a straight tunnel kiln, except that it has a movable, circular platform instead of cars.
Industry:Mining
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