Any of several aromatic resins, such as balsam of Peru and Tolu balsam, that contain considerable amounts of benzoic acid, cinnamic acid, or both, or their esters.
香脂一种芳香脂类树脂,如秘鲁香脂和塔鲁香脂,含有大量的苯甲酸、。
Any of several aromatic resins, such as balsam of Peru and Tolu balsam, that contain considerable amounts of benzoic acid, cinnamic acid, or both, or their esters.
香脂一种芳香脂类树脂,如秘鲁香脂和塔鲁香脂,含有大量的苯甲酸、。
应用推荐