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单词 cryogen
释义

WordReference Random House Unabridged Dictionary of American English © 2024
cry•o•gen  (krīə jən, -jen′),USA pronunciation n. 
  1. Physicsa substance for producing low temperatures;
    freezing mixture.
  • cryo- + -gen 1870–75

Collins Concise English Dictionary © HarperCollins Publishers::
cryogen /ˈkraɪədʒən/ n
  1. a substance used to produce low temperatures; a freezing mixture
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