Existing situation and structural classification of textile finishing agents are reviewed, and its synthetic methods are briefly introduced.
综述了国内外含氟织物整理剂的现状及结构分类，简述了其合成方法。
The present paper reported a new method of structural classification of viruses. All animal viruses were classified by the parameters of the capsid aad morpho-structure of nucleic acid.
本文报告了病毒的结构分类的一种新方法，即依据衣壳参数和核酸的形态结构特征进行分类。
Classification, sedimentary and structural features of foreland basin are discussed.
对前陆盆地类型划分、沉积、构造特征进行了研究。
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