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单词 extraction
释义
extraction

Physics
  • 1. The process of obtaining a metal from its ore.

    2. The separation of a component from a mixture by selective solubility.


Chemistry
  • The separation of a component from its mixture by selective solubility. See partition.


Chemical Engineering
  • A separation process in which a component is selectively removed by chemical or physical means such as the pressing of seeds to remove oils. Liquid–liquid extraction or solvent extraction is a separation process in which a component is selectively transferred from one liquid phase to another, such as the extraction of uranium and plutonium from a fission product containing nitric acid solution into a kerosene diluent containing the solvent tri-butyl phosphate.


Geology and Earth Sciences
  • See abstraction.


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