- 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 drag used to convey coal along the road to where it is loaded into cars, or to the chute.
Industry:Mining
A drag used to convey coal along the road to where it is loaded into cars, or to the chute.
Industry:Mining
A drag used to convey coal along the road to where it is loaded into cars, or to the chute.
Industry:Mining
A dragline bucket with a bowl of aluminum alloy covered top and bottom with steel wearing plates. Sides and back are of steel plates, and manganese steel is used for the lip and teeth. This bucket has no arch; thus weight is minimized. The sides are flared, permitting heaped loading, and the bucket dumps backward, not forward, thereby giving a somewhat longer dumping range.
Industry:Mining
A drain or inspection plug magnetized for the purpose of attracting and holding iron or steel particles in a lubricant.
Industry:Mining
A drain that intercepts and diverts water before it reaches the area to be protected.
Industry:Mining
A drain that intercepts and diverts water before it reaches the area to be protected.
Industry:Mining
A drainage pattern in which consequent streams radiate or diverge outward, like the spokes of a wheel, from a high central area; it is best developed on the slopes of a young, unbreached domal structure or of a volcanic cone.
Industry:Mining
A drainage pattern in which streams follow a roughly circular or concentric path along a belt of weak rock, resembling in plan a ringlike pattern. It is best displayed by streams draining a maturely dissected structural dome or basin where erosion has exposed rimming sedimentary strata of greatly varying degrees of hardness, as in the Red Valley, which nearly encircles the domal structure of the Black Hills, SD.
Industry:Mining
