名词
中文翻译：同位素含量
同义词：
['isotope content', 'isotopic ratio', 'isotope ratio']
例句：
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1. Theanalysis of the sample revealed a high level of isotopic content in the soil.
对样本的分析显示土壤中同位素含量很高。
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2. The study focused on understanding the isotopic content of carbon dioxide in the atmosphere.
该研究专注于了解大气中二氧化碳的同位素含量。
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3.The research team collected samples from different locations to determine the isotopic content of the water.
研究小组从不同地点收集了样本，以确定水的同位素含量。