摘要关键词模板法，贵金属，三维纳米材料，催化性质

AbstractElectricity has already occupied the dominant energy position in or daily life,and our dailyactivities will be unable to carry out without electricity.The highway area is s...

Annual output of 100 million compound glycyrrhizin injectionWorkshop designAbstractLicorice root is a traditional Chinese medicine with a long history in China.It issmooth and swee...

Process design for acetaldehyde production with an annualoutput of 200,000 tonsAbstractAcetaldehyde is a kind of important hydrocarbon derivatives,acetaldehyde productionmethods th...

北京理工大学珠海学院2020届本科生毕业设计The Design of the Preparation Process for Polypropylene Powder for 3Dprinting with 10,000 tons per yearAbstractThe design for the annual out...

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

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...

还有花白素及由儿茶素聚合形成的原花色素(proanthocyanidins),酸性条件下两类物质可部分转化为花青素。自然条件下，游离的花青素主要以糖苷形式存在，花青素与葡萄糖鼠李糖、半乳糖、阿拉伯糖等...

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...