... molecular carbon and hydrogen isotopes 分子碳 carbon and oxygen stable isotopes 碳氧稳定同位素组成 isotopes of carbon 碳的同位素 ...
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碳的同位素分析与其他的研究结果告诉我们，大气中的二氧化碳大部分来源于工业生产的排放。
Analysis of carbon isotopes, among other things, shows that the carbon dioxide from industry accounts for most of the build-up in the atmosphere.
如果火星上的甲烷是生命现象产生的，那么释放出的甲烷和水应该明显表现出氢和碳的同位素比。
Methane and water released on Mars should show distinctive ratios for isotopes of hydrogen and carbon if life was responsible for methane production.
随之而来勃发的浮游生物吸走了12c，碳同位素比率转向相反方向。
The subsequent plankton bloom sucked up the 12c and the isotope ratio veered off in the opposite direction.
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