AbstractThe sunflower dish powder was used as the raw material.The organic solvents were usedto extract and classify the flavonoids in the sunflower dish,and the developing agent a...

第一章绪论1.1镁合金1.1.1镁合金简介1.1.1列举的是镁的一些常见的性能参数。表1.11镁合金的部分性能参数作为结构材料，镁合金具有以下特征：良好的比强度和比刚度。镁合金就强度而言，它的屈服...

ABSTRACTChitosan (CTS),as an important macromolecule organic compound,is widely used inchemical industry,medical treatment,food manufacturing and other industries.Butbecause of its...

本科论文摘要“潮”之所以称之为“潮”，是因为它当前社会潮流的资本特征与特性，影响着大众的审美观与视觉潮流，深受广大青年朋友的热爱与追捧。源远流长的中国传统文化，其中就包含民族潮流，...

80,000 Tons of Butadiene Production Process DesignAbstractButadiene is an important petrochemical organic raw material and synthetic rubbermonomer.is one of the most important comp...

目录引言.………一、丰子恺的儿童观1二、丰子恺儿童题材散文的艺术特色(一)题材.….4(二)语言.5(三)构图(四)意境.…….7结语…参考文献.....9致谢.....…….10

melts at 720.9.XRD shows that KBr crystal belongs to cubic system and Fm3m space group.The transmission spectrum of KBr crystal has been tested,and the transmittance is greater tha...

cooperation is more frequent than before.Especially after China's accession to the world tradeorganization,it has greatly expanded its business with foreign countries,resulting in ...

目录引言01一、苏轼经济类散文写作背景(一)苏轼职官情况(二)北宋时期的经济状况二、苏轼经济类散文的文体与特征....4(一）策.、4(二)状(三)书.(四)札子…三、苏轼经济类散文的思想内容。。。6(...

前言Pretace本次毕业设计以十二生肖为主题，以拟人化的表现形式再结合中国元素去表达出来。十二生肖与我们的生活息息相关，随着时代的发展，西方的十二星座慢慢地被年轻人所接受。希望通过本次...