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To cultivate students' comprehensive experimental quality, this paper analyzes present situation of SMT experiment teaching in Guilin University of Electronic Technology. Many shortcomings and the insufficiency of SMT experiment are reported, and experimental teaching mode and reform measures are explored, such as dynamic integration of the experimental auxiliary teaching software and the network experimental teaching plattorm. We also pay attention to cultivate students'comprehensive qualit and innovation a hill , and make the students from passive learning to active learning. Those make up for the inadequacy of traditional experimental teaching methods effectively. To make full use of lahoratory equipment resources, the SMT virtual experiment aided teaching software is developed and the network experimental teaching plattorm is estahlished. Those aU improve the students'interess in experiments, expand the SMT experimental teaching method and ohtain good experiment teaching results. [ABSTRACT FROM AUTHOR]

Objective: To study the chemical constituents of Caesalpinia minax., Method: The chemical constituent was isolated by various chromatographic metheds and its structure was elucidated by the analysis of spectral data and physiochemical properties., Result: One diterpenoid compound was isolated from the 95% ethanolic extract of C. minax, and identified as 12alpha -methoxyl-14beta-hydroxy-lalpha, 6alpha, 7beta-triacetoxycass-13 (15)-en-16, 12-olide., Conclusion: Neocaesalpin L1 was a new compound and named as neocaesalpin L1.