We now know the age of the glaciation accurately from radiometric dating of the carbon-14 in logs buried in the drift.

我们现在通过测量掩埋在漂流物中木头放射性的碳-14元素，以精确地确定冰川作用的时期。

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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。

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The age of the cloth was determined by Carbon-14 dating.

FORBES: Ancient Burial Cloth Provides Clues To Bronze Age Trade

Carbon-14 decays into nitrogen at predictable rates, which is how it can be used to determine the age of an object.

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This allowed him to age or "date" a person by examining the brain cells a high carbon-14 count means the person was conceived in the era of atomic testing.

NPR: How A-Bomb Testing Changed Our Trees