- 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 gas introduced in small quantities into the main body of air to determine either the air current or the leakage paths in a ventilation system.
Industry:Mining
A gas or fluid that dissolves, receives by fractionation, transports, and precipitates ore minerals. A mineralizer is typically aqueous, with various hyperfusible gases (CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>S, HF), simple ions (H<sub>+</sub>, HS, Cl<sub>-</sub>, K, Na, Ca), complex ions (esp. chloride complexes), and dissolved base and precious metals.
Industry:Mining
A gas or fluid that dissolves, receives by fractionation, transports, and precipitates ore minerals. A mineralizer is typically aqueous, with various hyperfusible gases (CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>S, HF), simple ions (H<sub>+</sub>, HS, Cl<sub>-</sub>, K, Na, Ca), complex ions (esp. chloride complexes), and dissolved base and precious metals.
Industry:Mining
A gas or fluid that dissolves, receives by fractionation, transports, and precipitates ore minerals. A mineralizer is typically aqueous, with various hyperfusible gases (CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>S, HF), simple ions (H<sub>+</sub>, HS, Cl<sub>-</sub>, K, Na, Ca), complex ions (esp. chloride complexes), and dissolved base and precious metals.
Industry:Mining
A gas or fluid that dissolves, receives by fractionation, transports, and precipitates ore minerals. A mineralizer is typically aqueous, with various hyperfusible gases (CO<sub>2</sub>, CH<sub>4</sub>, H<sub>2</sub>S, HF), simple ions (H<sub>+</sub>, HS, Cl<sub>-</sub>, K, Na, Ca), complex ions (esp. chloride complexes), and dissolved base and precious metals.
Industry:Mining
A gas with the chemical formula, N<sub>2</sub>O ; molecular weight, 46; sp gr, 1.6. This gas is produced by the blasting of certain nitroglycerine explosives, esp. if there is incomplete detonation. It is also produced in the exhaust of diesel locomotives. It is used as an anesthetic in dentistry and is commonly known as laughing gas.
Industry:Mining
A gaseous mixture that explodes violently on ignition (as two volumes of hydrogen with one volume of oxygen, forming water).
Industry:Mining
A gas-filled chamber usually consisting of a hollow cylindrical cathode and a fine wire anode along its axis. It is operated with a voltage high enough so that a discharge triggered by a primary ionizing event will spread over the entire anode until stopped by the reduction of the field by space charge.
Industry:Mining
A gas-filled valve or tube in which the initiation of current in an ionized gas or vapor is controlled by the voltage applied to a control electrode.
Industry:Mining
