n.放射性碳,碳的放射性同位元素;
例句:
The material in this beach has been dated by radiocarbon.
这个海滩上的物质经过放射性碳测定.
Bacteria and bacterial residue carry additional carbon and would skew the radiocarbon date toward the present.
细菌和细菌性残余带来额外的碳,会使现时测定的年代变得不准确.
Researchers use radiocarbon to study certain biological processes.
研究人员借助放射性碳来研究某些生物过程.