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单词 freon
释义

WordReference Random House Unabridged Dictionary of American English © 2024
Fre•on  (frēon),USA pronunciation [Trademark.]
  1. Chemistry, Trademarksa brand name for any of a class of liquid or gaseous fluorocarbon or chlorofluorocarbon products, used chiefly as refrigerants.

Collins Concise English Dictionary © HarperCollins Publishers::
Freon /ˈfriːɒn/ n
  1. trademark any of a group of chemically unreactive chlorofluorocarbons used as aerosol propellants, refrigerants, and solvents
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