名词
中文翻译：同位素测量仪
同义词：
['isotopic gauge', 'isotope meter']
例句：
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1.The isotopes were measured to determine the composition of the sample.
通过测量同位素来确定样品的成分。
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2. The isotopes were used to study the origin of the water in the ocean.
使用同位素来研究海洋中水的源头。
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3. The isotopes were analyzed to find out how the Earth formed.
分析同位素以了解地球是如何形成的。