- 行业: Mining
- Number of terms: 33118
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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 line (in a stressed body) tangent to the direction of one of the principal stresses at every point through which it passes.
Industry:Mining
A line (in a stressed body) tangent to the direction of one of the principal stresses at every point through which it passes.
Industry:Mining
A line along which rocks under great compression yield, usually with the production of schistosity.
Industry:Mining
A line connecting points of equal density, particularly of ocean water. A line connecting points of equal atmospheric density may be called an isostere.
Industry:Mining
A line connecting points of equal temperature. Isotherm maps are often used to portray surface temperature patterns of water bodies.
Industry:Mining
A line connecting points of equal value of some magnetic element; e.g., isogonic line; isodynamic line; isoporic line.
Industry:Mining
A line connecting points on the Earth's surface at which earthquake intensity is the same. It is usually a closed curve around the epicenter.
Industry:Mining
A line connecting points on the Earth's surface at which earthquake intensity is the same. It is usually a closed curve around the epicenter.
Industry:Mining
A line connecting points on the Earth's surface at which earthquake intensity is the same. It is usually a closed curve around the epicenter.
Industry:Mining
