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漂白黏土
environ. bleaching clay Clay capable of chemically adsorbing oils, insecticides, alkaloids, vitamins, carbohydrates and other materials; it is used for refining and decolorizing mineral and vegetable oils (这种粘土有化学吸附油脂、杀虫剂、生物碱、维生素、碳水化合物和其他材料的能力;它是用于提炼和脱色矿物和植物油。)
tech. bleaching clay