年产9000万只医用防护口罩生产工艺设计
北京理工大学珠海学院2020届本科生毕业设计Production process design of 90 million medical protectivemasks annuallyAbstractAffected by the new crown epidemic,the demand for masks will...
浅谈矩阵的特征值与特征向量的应用
On the application of eigenvalue and eigenvector of matrixAbstract At first,in order to facilitate the study and solution of linear equations,the concept ofmatrix was introduced.Wi...
关于淘宝营销与发展对策的研究(英文)
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超声波辅助正丁醇提取茶皂素的工艺研究
AbstractThis experiment includes:using ultrasonic equipment to degrease tea dregs,butanol extract,controlling the solubility and temperature of butanol solution,etc.During extracti...
年处理5000吨芒果工厂设计
盐城工学院本料毕业设计(2016)Factory design of Annual treatment of 5000 tons mangoABSTRACTMango is one of the most popular fruits,which is widely popular.For many years,people's lov...
服饰文化研究——以汉服为例
Study on costume culture --taking han costume as an exampleAbstractAs a traditional costume of the han nationality,hanfu has a long history of developmentand plays an indispensable...
H工程项目施工质量管理分析
ABSTRACTWith the economic development and social progress,especially after the reform and opening up,Chinese construction market has developed by leaps and bounds.The construction ...