| 单词 | carbon-14 |
| 释义 | > as lemmascarbon-14 carbon-14 n. a long-lived radioactive isotope of carbon, mass number 14, which is the basis of the radiocarbon method of dating of organic materials and is used as a tracer element in biochemistry; cf. radiocarbon n.Carbon-14 has a half-life of 5730 years approx., being transformed by beta decay into nitrogen-14.extracted from carbonn.< as lemmas |
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