In this paper, the classification and synthesis methods of amino-acid type amphoteric surfactant, and the progress of its application in leather industry were introduced.
本文综述了氨基酸型两性表面活性剂应用于皮革中的研究动向，并重点介绍了其分类及合成方法。
In this article we review the progress situation in the cause, pathogenesis, classification complication, diagnosis and treatment of Henoch-Schoenlein purpura.
本文就过敏性紫癜的病因、发病机制、分类、并发症、诊断及治疗的进展情况进行综述。
The author reviewed the research progress on opium poppy celandines chemical component and phytochemistry classification basis, and delineated the perspective.
作者对白屈菜族植物的化学成分及植物化学分类进行了综述，并对其开发前景进行了展望。
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