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1. The triple withdrawal refiner is used to purify water before it is used for drinking.
三重撤回精炼器用于净化水，使其可用于饮用。
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2. The triple withdrawal refiner has been proven to be more effective than traditional methods in removing impurities from water.
三重撤回精炼器已被证明在去除水中杂质方面比传统方法更有效。
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3. The triple withdrawal refiner is a highly specialized tool that is only available for use by trained professionals.
三重撤回精炼器是一种高度专业化的工具，仅供受过培训的专业人员使用。