名词
中文翻译：同位素
同义词：
['isotope', 'isotopic']
例句：
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1.The research team discovered new isotopes in the ocean.
研究小组在海洋中发现了新的同位素。
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2.The scientists used isotopes to study the formation of the earth's crust.
科学家们使用同位素来研究地球地壳的形成。
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3. The isotopes were used as a tracer to track the movement of gases through the atmosphere.
这些同位素被用作示踪剂，用来追踪大气中气体的流动。