表观遗传过程是一种化学反应,与天生和后天培养都没有关系,但它代表了研究人员所说的“第三种成分”。
Epigenetic processes are chemical reactions tied to neither nature nor nurture but representing what researchers have called a "third component".
放射性碳年代测定法涉及到了化学分析,与文物中残留的有机物成分所释放的放射性碳的含量测定有关。
Radiocarbon dating had to do with chemical analysis, something to do with measuring the amount of radiocarbon that's left in organic stuff.
一般认为死于哮喘,心脏病和其它疾病的人数增加与灰色空气中的主要成分颗粒污染物有关。
Particulate pollution, a major ingredient of hazy skies, has been linked to higher death rates from asthma, heart disease, and other ailments.
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