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单词 pyran
释义

WordReference Random House Unabridged Dictionary of American English © 2024
py•ran  (pīran, pī ran),USA pronunciation n. [Chem.]
  1. Chemistryeither of two compounds having the formula C5H6O, containing one oxygen and five carbon atoms arranged in a six-membered ring.
  • pyr(one) + -an, variant of -ane 1900–05

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