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单词
allene
释义
al·lene
\ˈaˌlēn\
noun
(
-s
)
Etymology:
International Scientific Vocabulary, contraction of
allylene
1.
:
a gaseous hydrocarbon CH
2
= C = CH
2
— called also
propadiene, sym-allylene
2.
:
a diolefin with its two double bonds in adjacent positions
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更新时间:2025/9/15 13:59:23