- 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 price agreed between the seller and the buyer of an option at which the option can be exercised. The price is normally the current market price of the metal.
Industry:Mining
The price paid per yard driven (in addition to tonnage prices) for roads of certain widths and driven in certain directions.
Industry:Mining
The primary and higher order reactants of the resins and the chemical constituents of the molding compound, such as plasticizer, lubricant, solvent, catalyst, stabilizer, fire retardant, hardener, and coloring material.
Industry:Mining
The principal or central heading along which the coal is conveyed from two or more conveyor panels. Normally, the main gate is also the intake airway to the face.
Industry:Mining
The principal or original source from which drilling water is obtained, as opposed to recirculated water.
Industry:Mining
The principal ore is sphalerite, ZnS ; other important ore minerals are smithsonite, ZnCO<sub>3</sub>; hemimorphite, Zn<sub>4</sub>Si<sub>2</sub>O<sub>7</sub>(OH)<sub>2</sub>.H<sub>2</sub>O ; franklinite, (Zn,Mn,Fe)(Mn,Fe)<sub>2</sub>O<sub>4</sub>; willemite, Zn<sub>2</sub>SiO<sub>4</sub>; and zincite, ZnO .
Industry:Mining
The principal return airway of a mine. The main return air current represents the total quantity of air; i.e., after the air splits have reunited.
Industry:Mining
The principal stress whose value is neither the largest nor the smallest (with regard to sign) of the three.
Industry:Mining
