fractional extraction 分馏萃取 ; 分步抽提 ; 分级萃取 ; 分步萃取
chemical fractional extraction 分级提取
Fractional Extraction of Distillation Residue 蒸馏残渣的分级萃取
batchwise fractional liquid extraction 批式分级液体萃取
fractional solvent extraction [冶] 分步溶剂萃取
fractional oxygen extraction 分次氧提取物
fractional diffusion extraction 分馏萃取
batchwise fractional liqiud extraction 间歇工分级液相抽提
According to the molecular mass, the vacuum residuum from Iranian heavy crude oil was separated into fractions by the Supercritical fluid extraction and fractional (SFEF) technology.
采用超临界萃取分离技术对伊朗重质减压渣油按相对分子质量进行了分割。
The fractional extraction on Longkou lignite by different solvent was used for the studying of the occurrence modes and the variations of small molecular phases in coal.
研究煤萃取后的小分子相的赋存方式及其变化规律，用不同溶剂对龙口褐煤进行了分级萃取。
According to fractional mass transfer mechanism on the basis of response surface analysis, established a mathematical model of supercritical fluid extraction about paeoniflorin.
在响应面实验的基础上根据分步萃取传质机理，建立了超临界流体萃取芍药苷的数学模型。
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