radiocarbon testing
放射性碳测定年代测试
以上为机器翻译结果，长、整句建议使用 人工翻译 。
"Radiocarbon testing in this type of situation provided a very strong test of growth rates and ages, " says Dr Ebert, from Oregon State University.
BBC: NEWS | Science/Nature | Red sea urchin 'almost immortal'
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