名词
中文翻译：样本
同义词：
['sample', 'specimen', 'test sample']
例句：
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1.The research team collected a lower sample of the population for analysis.
研究团队收集了一小部分人群进行分析。
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2. The lower sample was found to be contaminated with trace amounts of heavy metals.
较低样本被发现含有微量重金属。
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3. The lower sample was analyzed using high-performance liquid chromatography (HPLC).
较低样本通过高效液相色谱进行分析。