- 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 ...
An explosive of the gelatin-dynamite class containing ammonium nitrate.
Industry:Mining
An explosive reaction such as a rapid combustion that moves through an explosive material at a velocity less than the speed of sound in the material.
Industry:Mining
An explosive resembling dynamite No. 2 and consisting of nitroglycerin with a more or less explosive dope.
Industry:Mining
An explosive shot that has been set off to loosen coal in a seam that has not been previously cut or sheared.
Industry:Mining
An explosive that is capable of detonating. There are two main types: (1) primary explosives, which detonate no matter what type of stimulus is given--these usually are very sensitive and (2) secondary explosives, which detonate normally only when the stimulus is a strong shock--under other types of stimulus they may merely deflagrate.
Industry:Mining
An explosive that is not approved in law for use in gassy mines.
Industry:Mining
An explosive train component consisting of a primer, a delay column, and a relay transfer charge assembled in a single housing to provide a controlled time delay.
Industry:Mining
An explosive used mainly for heavy quarry blasts in dry boreholes. It consists of TNT, ammonium nitrate, and powdered aluminum.
Industry:Mining
