英语释义

1. a heavy radioactive isotope of carbon of mass number 14 used especially in tracer studies and in dating old materials (such as archaeological and geological specimens)

2. a heavy radioactive isotope of carbon of mass number 14 used especially in tracer studies and in dating archaeological and geological materials

片语

labelling with carbon-14 and tritium碳

carbon-14 dating放射性碳测定年龄

carbon-14 agesc年龄

Carbon-14 Hexadecane碳

carbon-14 dating j碳14年代测定法

英汉例句

• Beneath that Hellenistic layer he found buildings scattered with four olive pits, which carbon-14 analysis dated to around 1000 B.C..

  在希腊地层(Hellenisticlayer)之下的建筑中，加芬克尔找到了四个橄榄核，经碳- 14分析确定其年代为公元前1000年左右。

• Drops of a nutrient solution containing radioactive carbon-14 were added to Martian soil, and a stream of radioactive carbon dioxide was detected rising out of the soil.

  在火星土壤里滴入包含放射性炭- 14的营养液，然后一股放射性二氧化碳流被检测到从土壤中产生出来。

• Find a good description of the dating process here. After carbon-14 spread throughout the globe, tiny amounts of the gas were taken up by the slow-growing mosses.

  在碳- 14散布到全球之后，微量的这种气体被缓慢生长的苔藓吸收。

• An isotope of carbon known as carbon-14 would also be stable, as would a form of oxygen, so the organic reactions necessary for life would be possible.

  碳的一个同位素碳14也是稳定的，氧的情形也是这样，因此生命必须的有机反应成为可能。

• According to the result of environment tritium math-physical model and carbon-14 age dating, think the renew ability of the thermal water in study area is confined and inhomogeneity.

  根据环境氚的数学物理模型计算和碳- 14测年结果，关中盆地热水可更新性具有有限性和非均一性特点。

• It quickly becomes carbon-14 (with six protons and 8 neutrons).

  从而迅速变为碳14(具备6个质子和8个中子)。

• The Specialty Synthesis Group is seeking a Synthetic Radiochemist to be responsible for the carbon-14 radiolabeled chemical synthesis, purification and analysis.

  现其特殊品合成部门诚寻一位放射合成化学研究人员，以从事碳-14 标志化合物的合成、纯化及分析工作。