碳定年

Accelerators are also used for radioisotope production, cancer therapy, Biological sterilization, and one form of radiocarbon dating.

加速器也用于制造放射性同位素、治疗癌症、生物消毒及放射性碳定年。

Mass spectrography analysis to date the copied map is under way at WaikatoUniversity in New Zealand, and the results will be announced in February.

这个地图副本已送交新西兰怀卡托大学进行碳定年检测。检测结果将于2月份公布。

Low magnetic susceptibility, low CaCO3, low organic carbon concentration, low C/A (Chenopodiaceae/Artemisia) ratio, low Sr concentration and, hence, high Rb/Sr ratio in the lake sediments indicate a cold but moist climate during the global Little Ice Age in the Daihai area.

在明确湖泊沉积物Rb/Sr比值古气候指示意义的基础上，通过AMS-14C和210Pb精确定年及12.08米岱海沉积岩心的Rb/Sr比值、碳酸盐含量和有机碳含量的变化，恢复了包括中世纪暖期、小冰期及全新世适宜期等典型气候事件在内的全新世环境演化过程，基本认识是：全新世早—中期9-3.5kaB.P。

The age of this site determined by carbon 14 dating is 350~200 BP.

经碳14定年法测定，其年代为距今350～200年间。

Libby discovered radioactive carbon element dating method and solved the puzzle of earth and human history.

利比发现的放射性碳14定年法，解答了地球与人类历史上的疑惑。

The initial errors in their carbon dating...

原先的碳14定年结果

Carbon dating and infrared analysis of Leonardo's techniques back up the theory.

碳定年法和红外线分析法对这幅作品作出的分析鉴定支持了该画出自达·芬奇之手的说法。

Some of these scrolls were taken by the western for research and carbon dating and some of it has been taken by the Jordan government and a group of academic people has been assigned to interpret its meaning.

其中的一些卷轴被西方拿走研究和进行碳定年，约旦政府得到了剩下的，并委派一组科研人员进行破译。

Current Status: In 1999, Atlanta's Michael Carlos Museum received the mummy and used carbon dating and CT scans to place the mummy to the era of Ramses I.

目前状况：1999年，亚特兰大的迈克尔·卡洛斯博物馆得到了这一木乃伊，通过碳定年和CT扫描确定这具木乃伊产生于拉美西斯一世时期。

"Carbon dating:The determination of the approximate age of an ancient object, such as an archaeological specimen , by measuring the amount of carbon 14 it contains."

碳定年：通过测量古代文物，如考古标本中碳-14的含量，从而测定该古物的大致年代。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。