- 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 ...
The nozzle of a pipe used to convey water for hydraulic mining and for the purpose of distributing or properly applying and increasing the force of the water.
Industry:Mining
The number expressing chlorinity as grams per liter. Obtained by multiplying the chlorinity of a sample by its density at 20 degrees C.
Industry:Mining
The number of amperes flowing through a circuit. Analogous to the flow of gallons per minute in a water pipe.
Industry:Mining
The number of blows that must be delivered by a specific-weight, freely falling drive hammer dropping a specific distance to force a drive sampler a unit distance into a soil material.
Industry:Mining
The number of cartridges in a standard case, which typically contains about 50 lb (22.7 kg) of explosive material.
Industry:Mining
The number of cubic yards of gravel that can be broken down and sent through the sluice by 1 miner's inch of water for 24 h. It depends upon the height of the bank, the character of the gravel and the bedrock, the grade of the bedrock, the type of sluice, and the pressure of the water. In well-rounded gravel without large stones, the duty of the miner's inch is from 4.5 to 6 yd<sub>3</sub>(3.3 to 4.6 m<sub>3</sub>) of gravel for 24 h. Under less favorable conditions, the duty may range from 2.8 to 4.6 yd<sub>3</sub>(2.1 to 3.5 m<sub>3</sub>) for 24 h.
Industry:Mining
The number of degrees through which the dipper or shovel bucket moves horizontally from the filled position to the dumping position.
Industry:Mining
The number of feet of drilling fluid standing in a borehole while the drill is operating and/or the number of feet of drilling fluid remaining in a borehole with the drill string withdrawn.
Industry:Mining
The number of grams of TNT required to produce the same angle of recoil of the ballistic mortar as 10 g of the explosive under test.
Industry:Mining
