• 洗涤剂是以柴油溶剂石油沥青为溶质,浓度1―15%比例制成混合液

    Said detergent is a mixed solution made up by using diesel oil as solvent, petroleum asphalt as solute and mixing them in 1-15% of concentration ratio.

    youdao

  • 洗涤剂是以柴油溶剂石油沥青为溶质,浓度1―15%比例制成混合液

    Said detergent is a mixed solution made up by using diesel oil as solvent, petroleum asphalt as solute and mixing them in 1-15% of concentration ratio.

    youdao

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