- 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 ratio of the area of a single-layer bit face covered by the inset diamonds or, in an impregnated bit, the bulk proportion of the crown occupied by diamonds.
Industry:Mining
The ratio of the distance through which the force applied to a machine moves, and the distance through which the load moves.
Industry:Mining
The ratio of the electric power produced by a powerplant to the heat value of the fuel consumed; thus, a measure of the efficiency with which the plant converts thermal energy to electric energy. Symbol, eta .
Industry:Mining
The ratio of the fatigue limit for cycles of reversed flexural stress to the tensile strength.
Industry:Mining
The ratio of the horsepower in the air to the horsepower absorbed by the driving motor of the fan.
Industry:Mining
The ratio of the lateral unit strain to the longitudinal unit strain in a body that has been stressed longitudinally within its elastic limit. It is one of the elastic constants. Symbol: sigma . Compare: modulus of incompressibility
Industry:Mining
The ratio of the liquid limit minus the natural water content to the plasticity index.
Industry:Mining
The ratio of the modulus of deformation of a soil in the undisturbed state to the modulus of deformation of the soil in the remolded state.
Industry:Mining
The ratio of the observed damping to that required for critical damping.
Industry:Mining
The ratio of the percentage of valuable material in the concentrate to the percentage of the valuable material in the original material.
Industry:Mining
