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单词
carbon-14
释义
carbon-14
n.
a long-lived naturally occurring radioactive carbon isotope of mass 14, used in radiocarbon dating, and as a tracer in biochemistry
碳
-14
,放射性碳
(
质量数为
14
的天然放射性同位素,用于年代测定及在生化中作示踪剂
)
随便看
atop
-ator
at (or by) a person's command
at (or from) the outset
at (or in) a pinch
at (or in) law
at (or in) one fell swoop
at (or in) one fell swoop
at (or in) press (or the press)
at (or on) sight
at (or on) the heels of
at (or US [美] on) the double
-atory
at outs
ATP
at par
at peace
at play
at present
atrabilious
at random
at rest
atrial
at right angles
at risk
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更新时间:2026/8/22 9:59:06