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单词 sulfur trioxide
释义

WordReference Random House Unabridged Dictionary of American English © 2024
sulfur trioxide, [Chem.]
  1. Chemistryan irritant, corrosive, low-melting solid, SO3, obtained by the oxidation of sulfur dioxide, used as an intermediate in the manufacture of sulfuric acid. Also called sulfuric anhydride. 
  • 1865–70

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