名词
中文翻译：同位素分析法
同义词：
['isotopic analysis', 'isotope assay']
例句：
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1.The researchers used the isotope assay to determine the origin of the sample.
研究人员使用同位素分析法来确定样本的来源。
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2. The isotopes were analyzed using a mass spectrometer.
通过质谱仪分析了同位素。
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3. The isotope assay was crucial in identifying the source of the contamination.
同位素分析在确定污染来源中至关重要。