名词
中文翻译：同义词
同义词：
['isotope', 'isotope']
例句：
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1. The isotopes in the sample are being studied to determine their origins.
样本中的同位素正在被研究以确定它们的来源。
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2. The scientist used a mass spectrometer to analyze the isotopes of the element.
科学家使用质谱仪分析了该元素的同位素。
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3. The isotopes of carbon-14 have been used to date ancient artifacts.
碳-14的同位素被用来测定古代文物的年代。