- 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 ...
Bi<sub>2</sub>Te<sub>2</sub>S ; hexagonal rhombohedral; gray; and a thermoelectric material. Because it loses its semiconducting properties above 100 degrees C, it is of value chiefly in cooling devices.
Industry:Mining
Bi<sub>2</sub>Te<sub>2</sub>S ; hexagonal rhombohedral; gray; and a thermoelectric material. Because it loses its semiconducting properties above 100 degrees C, it is of value chiefly in cooling devices.
Industry:Mining
Bi<sub>2</sub>Te<sub>2</sub>S ; hexagonal rhombohedral; gray; and a thermoelectric material. Because it loses its semiconducting properties above 100 degrees C, it is of value chiefly in cooling devices.
Industry:Mining
Biotite with its optic axial plane parallel to its b crystallographic axis.
Industry:Mining
Bit with cutting edges made by two chisel edges crossing at right angles with the intersection of chisel edges at the center of the bit face. Used to chop (by impact) lost core or other obstructions in a borehole.
Industry:Mining
Bit with cutting edges made by two chisel edges crossing at right angles with the intersection of chisel edges at the center of the bit face. Used to chop (by impact) lost core or other obstructions in a borehole.
Industry:Mining
Bit with cutting edges made by two chisel edges crossing at right angles with the intersection of chisel edges at the center of the bit face. Used to chop (by impact) lost core or other obstructions in a borehole.
Industry:Mining
Bit with cutting edges made by two chisel edges crossing at right angles with the intersection of chisel edges at the center of the bit face. Used to chop (by impact) lost core or other obstructions in a borehole.
Industry:Mining
