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词汇 fractional distillation
释义 fractional distillationn.(名词)
  1. Distillation to separate volatile chemical substances in which the products are collected in a series of separate fractions, each with a higher boiling point than the previous fraction.分馏作用:分离易挥发的化学物质的蒸馏法,其中生成物被收集在一系列单独的馏分里,每种馏分的沸点都比未分馏前高
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