树胶醛醣;阿戊糖一种结晶的戊醣, c5h10o5, 从植物的多醣类中得到,如树胶及半纤维素.A crystalline pentose sugar, C 5 H 10 O 5 , obtained from plant polysaccharides such as gums and hemicelluloses....

“醛醣”的英语可以翻译为：aldose ...