- 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 ...
A charge of explosives or blasting agent receiving an impulse from an exploding donor charge.
Industry:Mining
A charge of high explosives fired in boreholes drilled in the rock underwater for dislodging dangerous projections and deepening channels.
Industry:Mining
A charge that gives a complete loosening of the rock without throwing it excessively.
Industry:Mining
A chart or graph forming a continuous record, which is kept up to date, of the amount of work done on a major project. It may take the form of a bar graph, divided into sections representing different jobs to be done, estimated and actual completion dates, etc. The chart covers the entire project from the initial site preparation or drivage to completion.
Industry:Mining
A chart showing contour lines of equal magnetic field intensity and employed in the magnetic methods of geophysical prospecting.
Industry:Mining
A chart showing contour lines of equal magnetic field intensity and employed in the magnetic methods of geophysical prospecting.
Industry:Mining
A chart, graph, or table from which the amount of capillarity correction may be ascertained and applied to an angle reading taken from an acid-etch line in an acid bottle of specific size to determine the true angle of inclination of a borehole surveyed by the acid-etch method.
Industry:Mining
A chart, graph, or table giving the true angle of the inclination of a borehole for specific apparent angles as read from the etch line in a specific-size acid bottle.
Industry:Mining
A chart, graph, or table from which the amount of capillarity correction may be ascertained and applied to an angle reading taken from an acid-etch line in an acid bottle of specific size to determine the true angle of inclination of a borehole surveyed by the acid-etch method.
Industry:Mining
A check valve to slow the excessive travel speed of a piston in a hydraulic cylinder.
Industry:Mining
