... 非极性的 nonpolar 有机碳同位素组成 organic carbon isotope 羧酸酯 carboxylic acid ester ...
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soil organic carbon isotope 土壤有机碳同位素
stable organic carbon isotope 有机碳稳定同位素
organic carbon isotope analysis 有机碳同位素分析
organic carbon stable isotope 有机碳稳定同位素
organic carbon stable isotope ratios 有机碳稳定同位素
organic component and carbon isotope 有机质组分和碳同位素组成
isotope of organic carbon 有机碳同位素
carbon isotope of organic matter 有机质碳同位素
carbon isotope in organic matter 有机质碳同位素
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An isotope of carbon known as carbon-14 would also be stable, as would a form of oxygen, so the organic reactions necessary for life would be possible.
碳的一个同位素碳14也是稳定的，氧的情形也是这样，因此生命必须的有机反应成为可能。
A method combining solid phase microextraction (SPME) with cryofocus technique was developed for the compound-specific carbon isotope analysis of volatile organic compounds in aqueous phase.
将固相微萃取（SPME）技术与冷阱富集系统相结合，对水体中痕量挥发性有机物进行了单体碳同位素分析，方法检测限较常规SPME提高了一个数量级。
A naturally radioactive carbon isotope with atomic mass 4 and half-life 5,780 years, used in determining the age of ancient organic, geologic, or archaeological specimens.
一种碳的天然放射性同位素，原子量为4，半衰期为5，780年，用于测定古代生物标本，地质标本或考古遗迹的标本的年代。
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