名词
中文翻译：Unknown
同义词：
['tracer', 'tracer dyes例句：1. These dyes are used to trace the movement of water molecules in a sample.（这些染料用于在样本中追踪水分子的运动。）']
例句：
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1. These dyes are used to trace the movement of water molecules in a sample.
这些染料用于在样本中追踪水分子的运动。
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2. The tracer dyes were used to detect the presence of pollutants in the water.
这些示踪染料被用来检测水中污染物的存在。
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3. The scientist used tracer dyes to study the behavior of bacteria in the lab.
科学家使用示踪染料来研究实验室中细菌的行为。