名词
中文翻译：Unknown
同义词：
['concentrator', 'preconcentrator', 'pre-concentrator']
例句：
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1. The preconcentrator is used to concentrate the liquid before it is sent to the final treatment unit.
预浓缩器用于将液体在送往最终处理单元之前进行浓缩。
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2. The preconcentrator was designed to improve the efficiency of the wastewater treatment process.
预浓缩器被设计用来提高废水处理过程的效率。
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3.The preconcentrator is a critical component in the purification system, helping to remove impurities from the raw water.
预浓缩器是净化系统中的关键部件，帮助从原始水中去除杂质。