| 1. | All living things contain radiocarbon .
所有生物都含有放射性碳。
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| 2. | The material in this beach has been dated by radiocarbon .
这个海滩上的物质经过放射性碳测定。
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| 3. | The leaf was allowed to photosynthesize in the presence of radiocarbon .
叶子被允许同放射性碳进行光合作用。
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| 4. | Researchers use radiocarbon to study certain biological processes .
研究人员借助放射性碳来研究某些生物过程。
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| 5. | Radiocarbon ages of soils in china
我国土壤放射性碳年龄
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| 6. | The radiocarbon ages of charcoal and their implication derived from ciergou site along the haiyuan strike - slip fault
永定河上游晚更新世晚期以来的堆积阶地年代测定
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| 7. | Bacteria and bacterial residue carry additional carbon and would skew the radiocarbon date toward the present
细菌和细菌性残余带来额外的碳，会使现时测定的年代变得不准确。
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| 8. | The researchers used radiocarbon dating on 22 pieces of microscopic charcoal found among neandertal tools in fire pits in gorham cave
研究者们使用放射性碳方法为在山洞中发现的22片木炭确定年代
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| 9. | Using the technique of radiocarbon dating , they all agreed that the cloth dated to the 13th or 14th century ( 1260 to 1390 )
他们使用放射性碳年代测定法，都同意布料是回溯到十三或十四世纪（ 1260年到1390年） 。
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| 10. | The initial stone circle at stonehenge ? the so - called sarsen stones ? has been radiocarbon - dated to between 2600 and 2500 b . c
对巨石阵中的石材（就是所谓的砂岩石）进行放射性碳测定，日期在公元前2600年到公元前2500年之间。
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