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单词 vacuum distillation
释义

WordReference Random House Unabridged Dictionary of American English © 2024
vacuum distilla′tion, [Chem.]
  1. Chemistrya process of distillation employing a vacuum that by lowering the pressure on a liquid allows volatilization at a lower temperature than normal.
  • 1895–1900

Collins Concise English Dictionary © HarperCollins Publishers::
vacuum distillation n
  1. distillation in which the liquid distilled is enclosed at a low pressure in order to reduce its boiling point
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