最常用的方法是放射性碳定年法。

The most frequently used method is radiocarbon dating.

《柯林斯英汉双解大词典》

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上述说法。

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

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碳定年法显示这种植物至少从小冰河时期(大约400年前)开始就从未接触过阳光。

Carbon dating showed that the vegetation had not seen the sun since at least near the start of the Little Ice Age, some 400 years ago.

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碳定年法显示这种植物至少从小冰河时期(大约400年前)开始就从未接触过阳光。

Carbon dating showed that the vegetation had not seen the sun since at least near the start of the Little Ice Age, some 400 years ago.

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