常見例句雙語例句Radiocarbon dating showed that the head's age matched the king's date of death.放射性碳顯示這個頭顱的年齡符合國王的死期。The shroud was also damaged by a fire in the Late Middle Ages which could have added carbon material, resulting in a higher radiocarbon content and a later calculated age.這塊裹尸布在中世紀后期遭到火災(zāi)破壞，也可能會增加另外的碳元素，這樣會產(chǎn)生高放射性的碳素使計算的年代有所延遲。Because we know how fast radiocarbon decays, we can figure out the age of the organic material.因為我們知道放射性碳分解有多快，我們就能計算出有機材料的年齡。權(quán)威例句Using a combination of modern physics tools--including three-dimensional, high-resolution X-ray, radiocarbon dating with accelerator mass spectrometry, and infrared spectroscopy--the researchers analysed the tooth to determine the age and composition of a resinous filling detected inside.UNESCO: Basic Sciences 返回 radiocarbon age