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目录 题目、摘要.......................................................2 paper51.com 引言............................................................ 2 paper51.com 1.实验部分......................................................3 1.1实验前处理...................................................3 http://www.paper51.com 1.1.1土样的采集.................................................3 http://www.paper51.com 1.1.2烤烟样采集和前处理.........................................3 copyright paper51.com 1.2主要仪器及试剂材料...........................................3 内容来自论文无忧网 www.paper51.com 1.3操作步骤.....................................................4 内容来自www.paper51.com
2.结果与讨论....................................................4 内容来自论文无忧网 www.paper51.com 2.1各烟区土壤和烟叶含硫状况.....................................4 paper51.com 2.2烟叶与土壤中硫的相关性分析...................................5 http://www.paper51.com 2.3硫元素含量与施肥.............................................7 paper51.com
3.小结 .........................................................8 http://www.paper51.com 致谢............................................................9 paper51.com 参考文献.......................................................10 http://www.paper51.com
英文题目、摘要、关键词..........................................11 内容来自论文无忧网 www.paper51.com |