- 업종: 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 ...
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connecting roadway between two adjacent roadways that may be used for ventilation purposes.
Industry:Mining
A connection between two wires of a blasting cap that prevents building up of opposed electric potential in them.
Industry:Mining
A consolidated or indurated sedimentary rock formed by lithification of glacial till, esp. pre-Pleistocene till (such as the Late Carboniferous tillites in South Africa and India).
Industry:Mining