2.3.1XRD测试..262.3.2 FESEM表征.282.3.3Y203Er3计的上转换发光光谱.312.3.4退火温度对样品上转换发光的影响..3123.5反应釜内反应时长对样品上转换发光性质的影响332.3.6激发态寿命36、2.4本章...

abstractNo matter the development of the times or the needs of people's life,it isinevitable to use energy.However,today's energy consumption is very huge andhard to reduce.The old...

西南科技大学本科毕业设计（论文)学术诚信声明本人郑重声明：所呈交的毕业设计（论文），是本人在导师的指导下，独立进行研究工作所取得的成果。除文中已经注明引用的内容外，本论文不包含任何...

魏嵩寿、俸雅琼(2005)从实证和理论两方面阐述了中澳货物贸易的加快发展及其缘由，并指出当前还存在着影响两国贸易关系的一些不确定因素，如世界安全环境中的不确定性、中澳两国国内经济发展中的...

of a specific speed,the wave Angle is limited,and the influence of each waveformand skin speed on the ship is studied.Keywords:glider,high speed,maxsurf,seakeeping第一章滑行艇运动...

Numerical Simulation of Flow Field in Six-strandContinuous Casting TundishAbstractThe existing tool software ANSYS is used to simulate the process of molten steelentering the six-f...

AbstractIn this paper,we take the final question of mathematics in the middle schoolentrance examination of Chengdu in the past six years (usually the last question in thetest pape...

北京理工大学珠海学院2017届本科生毕业论文AbstractWith the continuous development of science and technology and the continuous progressof Internet technology ,'Internet 'has become a...

本科论文AbstractCasting in the production process with a certain degree of danger,the use of continuouscasting raw materials and their machinery and equipment often have some dange...

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