Click to edit Master title styleClick to edit Master text stylesSecond levelThird levelFourth levelFifth level精炼(Refining)食用油精炼目的: 使油脂油适合人类的消费精炼: 去除油脂中的杂质毛油中杂质成分 磷脂 (Phosphatides) 树脂 (Gums) 游离脂肪酸