• 利用体稳定火焰实验不同工况测量了蒸汽甲烷预混火焰速度

    By the experimental bench of bluff body flame and under different working orders, the speed in blowing out the flame of methane premixing gas with vapour is measured.

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  • 介绍了一种简便有效水蒸汽蒸馏装置半微量有机实验中的应用

    The application of a facile and effective steam distillation apparatus in Semi-micro organic experiment is introduced.

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  • 物理化学中的溶液沸点升高有机化学实验中的水蒸汽蒸馏看似矛盾实质上它们原理不同

    The boiling point rise of dilute solution in physical chemistry seems to contradict with vapor distillation in experiment of organic chemistry. Actually, they are of different principles.

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  • 因此丹皮酚提取实验结论为:水蒸汽蒸馏法优于乙醇回流

    Therefore, the experimental conclusion of extraction of paeonol was: the steam distillation method was better than the ethanol refluxing method;

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  • 本文强迫对流凝华实验系统,进行水蒸汽凝华结霜相变传热实验研究

    An experimental study is made of the heat transfer in the gas-solid phase change of frost formation by sublimating vapor.

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  • 实验研究了一种石油残渣油制取建筑沥青工艺——水蒸汽裂解缩合

    A new process for producing roofing asphalt from petroleum residua by steam cracking and condensation has been studied in the laboratory.

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  • 实验采用水蒸汽蒸馏法提取鲜姜干姜中的精油,利用GC-MS分析精油的成分。

    The volatile oils of walnut diaphragm were obtained by hydrodistilation and analysed by GC and GC/MS.

    youdao

  • 实验采用水蒸汽蒸馏法提取鲜姜干姜中的精油,利用GC-MS分析精油的成分。

    The volatile oils of walnut diaphragm were obtained by hydrodistilation and analysed by GC and GC/MS.

    youdao

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