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单词
alkyl group
释义
WordReference Random House Unabridged Dictionary of American English © 2024
al
′
kyl group′,
[
Chem.
]
any of a series of univalent groups of the general formula C
n
H
2n+1
, derived from aliphatic hydrocarbons, as the methyl group, CH
3
-, or ethyl group, C
2
H
5
-. Also called
al
′
kyl rad′ical.
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off-the-cuff
off-the-face
off-the-job
off-the-peg
off-the-rack
off-the-record
off the shelf
off-the-shelf
off-the-wall
offtrack
off-white
off year
off-year
ofgem
of human bondage
ofili
oflag
o'flaherty
oflem
o.f.m.
of mice and men
ofr.
ofr
ofris.
ofris
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更新时间:2025/11/20 11:11:46