- 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 weight of water--which soil, after saturation, will retain against a centrifugal force 1,000 times the force of gravity--to the weight of the soil when dry. The ratio is stated as a percentage.
Industry:Mining
The ratio of water to solids by weight. It is expressed as a ratio; e.g., a pulp dilution of 3 to 1 means that a pulp contains 3 t of water for each ton of solids.
Industry:Mining
The ratio, expressed as a percentage, of the amount of consolidation at a given time within a soil mass, to the total amount of consolidation obtainable under a given stress condition.
Industry:Mining
The ratio, expressed as a percentage, of the amount of water vapor in a given volume of air to the amount that would be present if the air were saturated at the same temperature. Compare: absolute humidity; specific humidity.
Industry:Mining
The reaction between a metallic ion and a complexing agent, generally organic, with the formation of a ring structure and the effective removal of the metallic ion from the system. It is significant in chemical weathering.
Industry:Mining
The reaction of metals with dry gases, leading to the formation of oxides or other compounds on the surface; it does not occur to a pronounced extent except at elevated temperature.
Industry:Mining
The recommended maximum allowable concentration of carbon dioxide in mine air is 0.5%.
Industry:Mining
The recovery of a sealed-off mine area that had been sealed to extinguish a fire. Two general systems may be employed: (1) recovering the fire area in successive blocks by means of air locks, and (2) reventilation of the fire area after there is conclusive evidence that the fire has been extinguished.
Industry:Mining
