以禽畜养殖场废弃物为原料日产沼气200立方米的工程设计
北京理工大学珠海学院2020届本科生毕业设计The engineering design of produce 200 cubic meters biogas per daywith livestock farm waste as raw materialAbstractOur country is agricultura...
S企业平台业务线软件质量管理优化研究
AbstractIn recent years,with the rapid development of information technology in theInternet era,the software industry has developed rapidly,but the management ofsoftware has develo...
浅析中小企业会计核算存在的问题及对策
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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...
数形结合在中学解题中的应用
目录1引言.......42数形结合思想在中学数学解题中的应用.·:2.1将代数问题几何化...…分2.1.1利用二次函数图像解决最值问题52.1.2利用几何图形证明数学公式2.1.3利用几何图形求解集合问题..·6...
微分方程在考研数学中的应用
The application of differential equation in mathematics of postgraduateentrance examinationAbstractThe theory of ordinary differential equation has been established for more than 3...
中学数学解题教学研究
Research on the teaching of solving math problems in middle schoolsAbstract Mathematics teaching is more important to a high school class,solve mathematicalexcelling in math have c...












