In recent years, domestic and foreign scholars have made researches on its extraction and separation methods, analytical methods, pharmacological effects, structural modification, and so on.
近年来，国内外学者对其提取分离方法、分析方法、药理作用、结构修饰等方面进行了研究。
This paper creatively put forward 3db design theory and analytical methods based on the intensive study of structural characteristics of 3db. Moreover, the 3db model is firstly designed and produced.
本文在充分研究了3db构造特点的基础上，创新性地提出了3db的设计理论和计算方法。
This paper creatively put forward 3db design theory and analytical methods based on the intensive study of structural characteristics of 3db. Moreover, the 3db model is firstly designed and produced.
本文在充分研究了3db构造特点的基础上，创新性地提出了3db的设计理论和计算方法。
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