- 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 ...
The maximum yield (as shown by the washability curve) of a product with a specified percentage of ash.
Industry:Mining
The mean sea level now used as the British Ordnance Datum for leveling. It was determined as the result of several years' observations at Newlyn, Cornwall, England, and differs at various places by more than 0.3 m from levels based on the Liverpool datum, which it supersedes.
Industry:Mining
The means by which power is conveyed to an electric trolley locomotive. It is hung from the roof and conducts power to the locomotive by the trolley pole. Power from it is sometimes also used to run other equipment.
Industry:Mining
The means of supporting connecting troughs where they pass over the drive unit. The support is attached to the drive unit frame and is designed to allow the connecting trough freedom of movement in the direction of the panline. Supports may be of the ball frame, wheel, rolled, or rocker arm types.
Industry:Mining
The measure of the amount of filtrate passing through or into a porous medium. Filter loss and cake thickness constitute the determining factors of filtration qualities.
Industry:Mining
The measure of the pressure expended per 1,000 ft/min per square foot of surface traversed in order to create motion under the conditions prevailing. It is expressed as pounds per square foot per 1,000 ft/min.
Industry:Mining
The measure of the thickness of the filter cake deposited against a porous medium. Cake thickness and water loss constitute the determining factors of filtration qualities.
Industry:Mining
The measured amount of subsidence expressed as a percentage of the thickness of coal extracted.
Industry:Mining
The measured electrical resistivity between two points on the Earth's surface, which corresponds to the sensitivity the ground would have if it were homogeneous.
Industry:Mining
The measurement of gravity or gravitational acceleration, esp. as used in geophysics and geodesy.
Industry:Mining
