1. Any of a class of carbohydrates, including lactose and sucrose, that yield two monosaccharides upon hydrolysis. 
   双糖碳水化合物的一种，包括乳糖和蔗糖，在水解下可生成两个单糖
2. A monosaccharide, CH2OH(CHOH)4CHO, commonly occurring in lactose and in certain pectins, gums, and mucilages. 
   半乳糖一种单糖，ch2oh（choh）4cho，一般产生于乳糖及特定的果酸、树胶及胶质物中
3. An enzyme occurring in certain yeasts and in the intestinal juices of mammals that is capable of splitting lactose into glucose and galactose. 
   乳糖酶一种能将乳糖分解成葡萄糖和半乳糖的酶，它存在于某些酵母或哺乳动物的体液中
4. A whitish liquid containing proteins, fats, lactose, and various vitamins and minerals that is produced by the mammary glands of all mature female mammals after they have given birth and serves as nourishment for their young. 
   奶，乳一种白色液体，含有蛋白质、脂肪、乳糖和多种维生素和矿物质，所有成年雌性哺乳动物在生产后其乳腺会分泌出该液体，用来哺育其幼儿

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• 1. 乳糖
  lactosaminoglycan 乳糖胺聚糖...lactose 乳糖...lactotransferrin 乳运铁蛋白
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• 2. （六）兴风作浪的乳糖
  本文献给YL...（六）兴风作浪的乳糖(lactose)
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• 3. 就是由于缺乏乳糖酶
  最常见的双糖消化缺陷是乳糖过敏，就是由于缺乏乳糖酶(lactose)，解决办法就是乳糖酶处理食物或避免摄入乳糖。...
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• 4. 乳糖［药用辅料
  Lactitol 拉克替醇［甜味药］...lactose 乳糖［药用辅料］...Lactulose 乳果糖［导泻药］
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