- 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 ...
As applied to a coal mine, these include parts of the locomotive, mobile conveyor, and elevator transportation systems for the removal of coal.
Industry:Mining
As applied to a mining claim, to clear a narrow strip along the boundary line, where the location is on timberland.
Industry:Mining
As applied to an electric blasting cap, the time elapsing between the bridge wire receiving the firing impulse and the breaking of the circuit.
Industry:Mining
As applied to chemical analyses, the loss in weight that results from heating a sample of material to a high temperature, after preliminary drying at a temperature just above the boiling point of water. The loss in weight upon drying is called free moisture; that which occurs above the boiling point of water, loss on ignition.
Industry:Mining
As applied to color, the comparative brightness (vividness) or dullness or brownishness of a color; its comparative possession or lack of brilliance; therefore, the variation of a hue on a vivid-to-dull scale.
Industry:Mining
As applied to electric blasting caps, a measure of the detonator's ability to withstand electrostatic discharges without exploding.
Industry:Mining
As applied to electric blasting caps, the limit below which firing will not occur.
Industry:Mining
As applied to electric blasting caps, the minimum current that can be employed to fire detonators connected in series so that the chance of a misfire will be less than 1 in 100,000.
Industry:Mining
As applied to electric blasting caps, the minimum impulse of current required to fire a detonator.
Industry:Mining
