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单词 pyrazoline
释义 pyrazoline
 /pi raz"euh leen', -lin, puy-/, n. Chem.
  1. any of the group of heterocyclic compounds containing three carbon atoms, two adjacent nitrogen atoms, and one double bond in the ring.
  2. the parent compound, C3H6N2.
 [1885-90; PYRAZOLE + -INE2]
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