Two kinds of heavy oils were separated into four and eight fractions by liquid-solid adsorption chromatography, respectively.
利用液-固吸附色谱柱将重油分离成四组分或八组分；
Two kinds of heavy oils were separated into four and eight fractions by liquid-solid adsorption chromatography, respectively.
利用液-固吸附色谱柱将重油分离成四组分或八组分；
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