- 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 piece of iron pipe, usually about 1/2 in (1.3 cm) in diameter, used to provide a smooth passageway through the stemming for the miner's squib. It is recovered after each blast and used until destroyed.
Industry:Mining
A piece of land having, or thought to have, valuable coal deposits on it and legally claimed by one seeking to own it.
Industry:Mining
A piece of material prepared in a suitable shape so that it can be tested in a testing machine.
Industry:Mining
A piece of rock of a size that is convenient for megascopic study and for preserving in a study collection.
Industry:Mining
A piece of timber placed slanting over the back of a level to prevent rock falling into the level from the stopes above.
Industry:Mining
A piece of wood attached to the leg of steel girders to provide a measure of yield and prevent premature distortion and damage to the ring.
Industry:Mining
A piece of wood the size of a broom handle for pushing explosive cartridges and stemming into shotholes.
Industry:Mining