名词
中文翻译：分馏曲线
同义词：
['fractogram', 'fractional curve', 'fractionation curve']
例句：
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1. Thescientists used the fractionation curve to analyze the chemical composition of the sample.
科学家们使用分馏曲线来分析样品的化学成分。
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2.The fractionation curve shows that the sample has a high concentration of heavy metals.
分馏曲线显示，样品含有大量重金属。
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3.The fractionation curve helps us understand the distribution of different elements in the sample.
分馏曲线有助于我们理解样品中不同元素的分布情况。