- 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 ...
Photosynthetic, almost exclusively aquatic, plants of a large and diverse division (Algae) of the thallophytes, including seaweeds and their fresh-water allies. It ranges in size from simple unicellular forms to giant kelps several meters long, and displays extremely varied life-cycles and physiological processes, with, e.g., different complexes of photosynthetic pigments. Algae range from the Precambrian. An individual plant is called an alga.
Industry:Mining
Piece of wood, square or rectangular in cross section, usually made of oak, ash, or other hardwood. Also used to denote a shaped piece of wood provided with a handle and designed for placing between the rails to hold back a tub or set of tubs.
Industry:Mining
Pieces of core not picked up or those pieces that slip out of the core barrel as the barrel is withdrawn from the borehole.
Industry:Mining
Pieces of wood full of resin found in brown coal. When ignited they burn, melting and giving off soot and an aromatic odor like sealing wax.
Industry:Mining
Piercing of rock strata by use of high-temperature flame to fuse the rock, together with jets of water to cause decrepitation and to flush the fragments out.
Industry:Mining
Pig iron made from a charge containing a considerable proportion of slag from puddling or reheating furnaces.
Industry:Mining
Pig iron made from Cuban ores that contain vanadium and titanium, or pig iron made to duplicate the Cuban iron.
Industry:Mining
