chemical fossils 中文意思是什麼
chemical fossils
解釋
化學化石- chemical : adj 化學的,化學作用的;應用化學的,用化學方法獲得的。n 〈常 pl 〉化學製品;藥品。 fine chemicals...
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Chemical fossils ( e. g. alkanes and porphyrins ) are often the only evidence for life in rocks of precambrian age
化學化石(烷烴和卟啉)是前寒武紀地層中生命存在的唯一證據。 -
Chemical fossils particularly resistant organic chemicals present in geological strata that are thought to indicate the existence of life in the period when the rocks were formed
化學化石:殘存於地質地層中的有機化學物質,當這樣的地層被發現時,可以預測出那個地層形成時期的生命活動現象。
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