A disaccharide which on hydrolysis yields glucose and galactose .

其中产糖一葡萄糖和乳糖水解.

Disaccharide : 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。

Plants protect the reactive monosaccharides for transport and storage by condensing them with loss of water , into less reactive sugars , e. g. , d-glucose and d-fructose , are condensing in such a way that their reactive functions are lost to form the disaccharide no reducing sugar , sucrose .

植物依靠脱水缩和方式将活泼的单糖变成不大活泼的糖类来保存单糖的还原活性，以便输送和贮存。例如，d-葡萄糖和d-果糖缩合成无还原性双糖蔗糖时，变失去了活泼的功能。

Any two monosaccharides can form a disaccharide .

任何两个单糖可以形成一个糖。

Trehalose is a naturally occurring non-reducing disaccharide .

海藻糖是一种天然存在的非还原性二糖。