carbon dating
US /ˈkɑːr.bən ˌdeɪ.tɪŋ/
UK /ˈkɑː.bən ˌdeɪ.tɪŋ/
名词
碳定年法, 放射性碳定年法
a method of determining the age of an artifact or biological specimen by measuring the amount of carbon-14 remaining in it
示例:
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Archaeologists used carbon dating to determine the age of the ancient wooden artifact.
考古学家使用碳定年法来确定这件古代木制文物的年代。
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The limitations of carbon dating mean it's only effective for objects up to about 50,000 years old.
碳定年法的局限性意味着它只对约5万年以内的物体有效。