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- Fractional distillation of petroleum is carried on in a still. 石油的分馏在蒸馏器内进行。
- It can be separated from each other by ordinary fractional distillation. 两者通过普通的分馏彼此分离。
- Fractional distillation is a physical method which cannot decompose compounds. 分餾法只屬物理方法，不能分解化合物。
- It is not always easy to separate a mixture of liquids into pure substances by fractional distillation. 用馏分蒸馏法把液体的混合物分成纯物质，不总是轻而易举的事。
- A colorless crystalline hydrocarbon, C14H10, obtained by fractional distillation of coal-tar oils and used in dyes, drugs, and explosives. 菲一种无色的晶体碳氢化合物，C14H10，通过蒸馏煤焦油而少量地获得，用于染料、药品和炸药
- It is not easy to separate a mixture of liquids into pure substances by fractional distillation. 通过分级蒸馏把液体中的混合物分解成纯物质是不容易的。
- A mole analysis of the separator liquid and gas samples is obtained usually by means of a fractional distillation column. 通常我们可以通过分裂蒸馏塔，对分离液、气进行摩尔比分析。
- P-methoxybenzeneacetonitrile was prepared in 34. 8% yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation. 以苯甲醚为原料;经过氯甲基化;氰化反应后;通过精馏获得对甲氧基苯乙腈;总收率为34.;8%25。
- A colorless,flammable liquid,C6H14,derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature thermometers. 已烷一种无色可燃液体，C6H14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体。
- A colorless, flammable liquid, C6H14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature thermometers. 已烷一种无色可燃液体，C6H14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体
- A volatile, colorless, highly flammable liquid hydrocarbon, C7H16, obtained in the fractional distillation of petroleum and used as a standard in determining octane ratings, as an anesthetic, and as a solvent. 庚烷一种易挥发、无色、非常易燃烧的液状碳氢化合物，C7H16，由石油的分级蒸馏而来，用作辛烷分级的标准，亦可作麻醉剂和溶剂
- A volatile,colorless,highly flammable liquid hydrocarbon,C7H16,obtained in the fractional distillation of petroleum and used as a standard in determining octane ratings,as an anesthetic,and as a solvent. 庚烷一种易挥发、无色、非常易燃烧的液状碳氢化合物，C7H16，由石油的分级蒸馏而来，用作辛烷分级的标准，亦可作麻醉剂和溶剂
- During the course of the experiment, the student will be exposed to fractional distillation under vacuum, gas chromatography, refractometry, polarimetry, and IR absorption spectroscopy. 气相色层分析，折光率的测定，旋光度的测定和红外吸收光谱。
- Therefore, fractional distillation must be used in order to separate the components well by repeated vaporization-condensation cycles within a packed fractionating column. 因此，为了很好地分离各组分，必须通过在一个填充分馏柱内不断重复汽化-冷凝周期的方法进行分馏。
- fractional distillation product of membrane 膜分馏物
- Fractional Distillation Systems and Components 分馏式蒸馏系统和部件
- index of fractional distillation power 分馏效率指数
- reactive fractional distillation 反应精馏
- straight fractional distillation 直接分馏
- straight-forward fractional distillation 直接分馏
