名词
中文翻译：纯化
同义词：
['purification', 'purify', 'refine']
例句：
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1. The process of purifying water is essential for drinking.
净化水的过程对于饮用水来说至关重要。
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2. The company has been purifying its products to meet new environmental standards.
该公司一直在对其产品进行净化，以符合新的环境标准。
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3. The scientist purified the sample using a special solvent.
科学家用一种特殊的溶剂来净化样本。