- 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 ...
Machines or equipment that can be moved from one part of a mine to another by mechanical means, such as but not by self-propulsion, on a track, or on attached wheels.
Industry:Mining
In froth flotation, reagent used to control alkalinity and to eliminate harmful effects of colloidal material and soluble salts.
Industry:Mining
Materials such as concrete or prestressing wire have a variable Young's modulus (E) so that the particular value of E adopted must be either the slope of the tangent to the stressstrain curve or that of the secant. The latter is the line that joins the origin of the curve to, for instance, the 0.1% proof stress, expressed on the curve. For a material within its elastic range, the secant will coincide with the tangent.
Industry:Mining
In this system, the loads are carried by bogies running on a taut wire rope instead of steel joists or flat-bottomed rails.
Industry:Mining
Equipment used to fire a ball of fire clay into the tap hole of a blast furnace.
Industry:Mining
Coarse-grained blastomylonite formed by dislocation metamorphism of a gabbro. Flakes of mica or chlorite sweep around augen of feldspar and/or quartz with much recrystallization and neomineralization.
Industry:Mining
Iridescent portion of mollusk shells, made of the mineral aragonite.
Industry:Mining
Pairs of narrow coal headings with crosscuts at intervals, driven to form large pillars of coal in panel working.
Industry:Mining
Element that occurs in nature uncombined, such as nugget gold, metallic copper, etc.
Industry:Mining
