- 업종: 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 1% copper sulfate solution recommended as an etchant for revealing dendritic structures in high-carbon steels.
Industry:Mining
A 12-in (0.3-m) scale divided into tenths and hundredths of a foot, used for accurate measurement in conjunction with a steel band that is graduated only in feet. See also: band chain.
Industry:Mining
A 15-min time-weighted average exposure that should not be exceeded at any time during a work day even if the 8-h time-weighted average is within the threshold limit value.
Industry:Mining
A 200-mesh feldspar produced for use by the manufacturers of chinaware, sanitary ware, ceramic tile, frits, enamel, glazes, electrical insulators, and vitrified grinding wheels.
Industry:Mining
A 30 degrees to 60 degrees cone having a basal diameter approx. the same size as an asize diamond-drill rod used to determine the force required to thrust the cone downward into silty or fine to medium-coarse sands, and hence to obtain information that a foundation or soils engineer may use to calculate some of the load-bearing capabilities of such formations.
Industry:Mining
A 30 degrees to 60 degrees cone having a basal diameter approx. the same size as an asize diamond-drill rod used to determine the force required to thrust the cone downward into silty or fine to medium-coarse sands, and hence to obtain information that a foundation or soils engineer may use to calculate some of the load-bearing capabilities of such formations.
Industry:Mining
