carbon dating

noun

1. 碳定年法（根据测定古物不同形态的碳含量以计算年代）
   a method of calculating the age of very old objects by measuring the amounts of different forms of carbon in them

1. (古物的)碳14年代测定法,碳定年法
   Carbon dating is a system of calculating the age of a very old object by measuring the amount of radioactive carbon it contains.

1. The tree's genetic material age had been calculated using carbon dating at a laboratory in Miami, Florida.
   美国佛罗里达州迈阿密的一个实验室采用碳测年法计算出了它的树龄。
2. Carbon dating provides the archaeologist with a basic chronological framework.
   碳元素年代测定法给考古学家提供了基本的年代框架。
3. Carbon dating indicated that the history of these massive statues could be traced back to400 BC.
   碳年代测定法表明，这些巨大雕像的历史可以追溯到公元前400年。
4. Archaeologists had been unable to confirm that sequence of events, however, in part because of the limitations of carbon dating.
   研究人员由于受碳元素追踪技术的限制，无法确认这些事件的时间顺序。
5. However, researchers have now found a chemical method to remove the oil without harming the parchment of the scrolls, and thus allowing precise carbon dating, said the report.
   然而，研究人员现在已经发现一种化学方法，这种方法能除去油迹而不损伤古卷的羊皮纸，因此碳精确鉴定方法得以实现，政报报道。
6. It is not yet clear when a new set of carbon dating tests will be carried out, the report added.
   现在还不清楚何时能实施新一轮的碳鉴定试验。
7. And we have a lot of schools and colleges planning carbon dating events.
   与此同时，我们还组织很多的学校和大学计划开展“低碳约会”的活动。
8. So with radio carbon dating, we get the maximum possible age for the object.
   因此，我们使用放射碳方法，可以知道艺术品可能的最古老的年代。
9. The finger bone-just one disklike phalanx-is so small that it does not contain enough usable carbon for dating, the researchers note.
   研究人员指出这块盘状的手指骨实在太小了，其中根本没有足够的碳来定年。
10. Carbon 14 age dating in Xinjiang and data base ( I)
    新疆~（14）C年代测定及数据集（I）
11. Study on the affection of dead carbon to~ ( 14) C dating
    死碳对~（14）C年代测定影响的初步研究
12. According to field survey and data of Radio Carbon Dating and chemical analysis, thls paper discusses the formation period and environments of Salt Lakes in the Hailar Basin.
    本文根据野外实地考察和14C年龄数据以及部分化学分析数据，探讨了海拉尔盆地盐湖的形成时期及环境。
13. Modern Steels, Ancient Steels, and Carbon Dating
    现代钢、古代钢和碳定年法

noun

1. a chemical analysis used to determine the age of organic materials based on their content of the radioisotope carbon-14

   Synonym:    radiocarbon datingcarbon-14 dating