年产10万吨甲醇制丙烯的工艺设计
北京理工大学珠海学院2020届本科本科生毕业设计Process design of producing 100,000 tons of methanol topropylene per yearAbstractPropylene has been an important component of the chemic...
年产2000吨聚酰亚胺纤维生产设计工艺
2000 tons of Polyimide Fiber process designAbstractThis design is the production process design of 2000 tons per year polyimide fiber.In thedesign,it mainly introduces two modules:...
年产2500吨脲醛树脂胶黏剂的合成工艺设计
ABSTRACUrea formaldehyde resin,referred to as UF,is a high molecular polymer obtained bythe reaction of urea and formaldehyde,through addition and polycondensation.But so far,the s...
硕论陕西绿色苹果科技推广与对策研究
AbstractApple is one of the most widely eaten fruits in the world,cultivated in more than80 countries and regions.China has a long history of apple production and uniquegeographica...
纤维素降解菌的筛选及特性研究
AbstractBiological composting is the main method for the utilization of solid wasteresources in most farms.It has the advantages of low investment,high efficiency,and high efficien...
樟脑酸为手性中心苯酯苯类液晶的制备与性能研究
AbstractChiral liquid crystal elastomers have been extensively studied in the field of materials inconsequence of their unique characteristics originated from the atomic chiral cen...
格力电器财务能力分析与评价(开题）
析企业的财务状况和经营成果。赵婷(2017)指出财务报表分析方法应科学实用，其次指出财务报表分析应重视定性与定量相结合。只有这样，才能构建完整的财务报表分析系统，才能充分发挥财务报表分析...
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浅析中小企业会计核算存在的问题及对策(开题)
林业碳汇应作为无形资产进行确认，并应依据《IAS38无形资产》进行核算。欧洲的部分国家目前对林业碳汇的会计核算研究比较前沿，比如德国、法国和英国。各国对林业碳汇项目的会计确认和计量存在...
不同版本教材知识点设置的比较研究
A comparative study on the set of knowledge points in different editionsof textbooks-A case study of Parallelogram in junior middle schoolAbstract With the continuous advancement o...
关于初中优等生与学困生数学学习心理的探究
目录1.绪论…1.1问题的提出及意义…1.2研究的方法………………21.2.1文献调查分折………21.2.2问卷调查分析…21.2.3个别访谈分析…21.3相关概念的界定……21.3.1优等生……21.3.2学困生……21.3...
