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单词
pyrazoline
释义
WordReference Random House Unabridged Dictionary of American English © 2024
py•raz•o•line
(pi raz
′
ə lēn′, -lin, pī-),
USA pronunciation
n.
[
Chem.
]
Chemistry
any of the group of heterocyclic compounds containing three carbon atoms, two adjacent nitrogen atoms, and one double bond in the ring.
Chemistry
the parent compound, C
3
H
6
N
2
.
pyrazole
+ -
ine
2
1885–90
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更新时间:2025/11/19 22:15:14