- 行业: Mining
- Number of terms: 33118
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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 angle of deflection, as measured at the intersection point, between the straights of a railway or highway curve.
Industry:Mining
The angle of superficial slope naturally assumed by rock debris, earthy detritus, etc., when piled up in mounds or ridges.
Industry:Mining
The angle, theta , at which X-rays diffract in crystalline materials. It satisfies the relationship n lambda = 2 d sin theta , where d is the distance between diffraction planes of atomic particles in a crystal structure, lambda is the wavelength of the X-rays, and n is the order of diffraction when a crystal is placed in an X-ray beam.
Industry:Mining
The angular deviation of a borehole from vertical and/or its intended course.
Industry:Mining
The animal forms of plankton, e.g., jellyfish. They consume phytoplankton.
Industry:Mining
The annual value of a property is the estimated annual surplus of revenue over expenditure in process of liquidating the mineral reserves. In the usual case, that of a property owned by a company, it is the dividend estimated maintainable annually over the whole computed life, the regular distribution of mining profit.
Industry:Mining
