在碳同位素组成上具深源碳特征。
The composition of carbon isotope has the characteristics of carbon of deep seated source.
即不同金管之间气态烃的相对含量和碳同位素组成差异很小。
The proportional and carbon isotopic compositions of hydrocarbon and non-hydrocarbon gases are almost identical among these gold capsules.
从而为利用深海沉积有机质碳同位素组成研究古气候变迁提供了依据。
Such a study provides a basis for understanding palaeoclimate shifts by investigation of organic carbon isotopic composition in the deep sea sediments.
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