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Mineral mining
The extraction of valuable minerals or other geological materials from the earth for economic interests.
Industry: Mining
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Mineral mining
double-roll press
Mining; General mining
A press in which pressure is applied by the mating of one or more pairs of indented rolls of equal diameter, revolving in opposite directions.
Belgian press
Mining; General mining
A press in which pressure is applied by the mating of one or more pairs of indented rolls of equal diameter, revolving in opposite directions.
plunger press
Mining; General mining
A press in which the pressure is applied by a plunger, with a reciprocating motion, to charges of feed contained in molds in a vertical or horizontal table.
hydrophone
Mining; General mining
A pressure-sensitive detector that responds to sound transmitted through water. It is used in marine seismic surveying, or as a seismometer in a well.
