名词
中文翻译：真空结晶器
同义词：
['vacuum distillation apparatus', 'vacuum distillation column']
例句：
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1. The vacuum crystallizer is used to purify the crude oil.
真空结晶器用于净化原油。
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2. The vacuum crystallizer is essential for the production of high-quality chemicals.
真空结晶器对于生产高质量化学品至关重要。
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3. During the vacuum crystallization process, the solvent is removed from the solution.
在真空结晶过程中，溶剂从溶液中被移除。