- 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 application of X-rays to the study of the internal structure of various materials, esp. metals.
Industry:Mining
The approximate load the dipper is carrying, expressed as a percentage of the rated capacity. The fill factor is commonly called the dipper factor for shovels or the bucket factor for draglines.
Industry:Mining
The aqueous solution remaining after the metal has been extracted by the solvent; the tailing of the solvent extraction system.
Industry:Mining
The arbitrary, but systematic arrangement, zonation, or partitioning of the sequence of rock strata of the Earth's crust into units with reference to the many different characters, properties, or attributes that the strata may possess (Hedberg, 1958).
Industry:Mining
The area affected by subsidence over areas where minerals or other substances have been removed. The area is larger than the mined-out area below.
Industry:Mining
The area in advance of mine workings not adequately probed by pilot holes to detect the presence of water-bearing fissures or structures.
Industry:Mining
The area of a surface cut by a plane passing through the body and perpendicular to the long axis of the body if one exists. If not, any such area cut by a plane.
Industry:Mining
The area of coal required to be worked to cause a surface point to suffer all the subsidence possible from the extraction of a given seam.
Industry:Mining
The area of solid coal within the fractured and crushed edges of the pillar.
Industry:Mining
