名词
中文翻译：同位素
同义词：
['isotope', 'isotope']
例句：
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1.The scientist used isotopes to study the behavior of matter.
科学家使用同位素来研究物质的行为。
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2. The isotopes were used to create a new type of fuel.
同位素被用来创造一种新型燃料。
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3.The isotopes were used in experiments to determine the properties of matter.
同位素在实验中被用来确定物质的性质。