Study on the cultivation of middle school students'coreaccomplishmentPreliminary study on the application of experimental teachingmethod in middle school chemistry teachingAbstract...

AbstractChemistry entails exploring not only the properties and changes of matter at themacro level,but also the composition and structure of matter at the micro level,andthe link ...

不同原料配比对煤矸石有机肥理化性质的影响摘要以自山西省榆次区北山矿区的煤矸石，山西怀仁醋厂所排放的废弃物醋糟。来自山西省榆次区乌金山镇山西能源学院北部地田农户的玉米秸秆为原材料分别...

北京理工大学珠海学院2020届本科生毕业设计AbstractThe new energy vehicle battery cooling heat exchanger is a kind of base material which canreduce the heat of battery and make the ef...

热原子系统四波混频制备双光子对恩AbstractThe hot atom ensemble is an efficient system for generating quantum light sources.Thehigh count-rate quantum light source is the basis of st...

四川大学博士学位论文A1ON粉体，当原料中A1配比降至11.0wt%时，A12O3采用NH4Al(SO4)2·12HO热解法自制粉体（粒径约30m,粒度分布范围宽），在N2气氛中，在1800℃煅烧3小时可以合成出单相A1ON粉体...

ABSTRACTABSTRACTThe deconvolution of seismic data and impedance inversion are keytechnologies to improve the resolution,reservoir prediction and discrimination.Impedance is the phy...

Shantou city some maternal and child club artificial environmentdesignAbstractMother-and-child centers are a kind of medical care service for people,and now moreand more mothers ch...

天然染料的提取及在扎染的应用摘要天然染料是一种由植物，动物，矿物等天然物质中提取的产物，其中，植物靛蓝染料是天然染料中最受欢迎的种类之一。它具有色泽艳丽，色牢度高且抗菌，抗炎等优点...

目录绪论。.41.1项目背景41.2研究价值51.3研究方法及思路52.实验的结果归纳汇总52.1实验样品分析.52.2实验目的...62.3实验时间…62.4实验内容。63.研究结果及分析63.1实验结果…63.1.1NACL溶液...