无机化学在中学化学教学中的应用——以“物质结构为例”
AbstractThe knowledge of inorganic chemistry in universities has a great leading role inmiddle school chemistry.Through the understanding and analysis of substances,theunderstandin...
我国食品药品为何丑闻不断
AbstractChina's rapid economic development,food and drug safety incidents occur frequently,and not let people feel comfortable life.Only the establishment of law enforcementsupervi...
项目式教学法在初中化学教学中的应用探究
AbstractProject-based teaching is a teaching model to help students raise questions,explore problems,cultivate critical thinking and improve their ability of cooperationand practic...
西北寒区渠道工程冻融灾害链式试验研究
导热系数较大。气温测量温度计测量每日最高、低温度表1冻土及其他材料参数冻胀变形测量经纬仪、水准仪测定冻胀位移值弹性模量密度渠基土壤水分士钻测定土壤含水率材料泊松比线影胀系数Pa《kgm)...
氧化石墨烯掺量下碳纤维复合材料层合板的电学性能测试
Electrical performance test of carbon fiber composite laminateswith graphene oxide contentAbstractCarbon fiber composites(carbon fiber reinforced polymer,abbreviated CFRP)areapplie...
盐酸分解磷矿装置设计
毕业设计1.前言我国的磷肥工业起步较晚。20世纪50年代在南京和太原兴建了两个大型磷肥厂，主要生产过磷酸钙：20世纪60年代初，开始发展钙镁磷肥：20世纪80年代以来，磷酸铵和硝酸磷肥相继投产，...
无糖甘氨酸亚铁咀嚼片的工艺及稳定性研究
The research of the technology and stability of sugar-free glycineferrous chewable tabletsAbstractBy using glycine ferrous as the main raw material,the optimum formulation of glyci...
纤维混凝土配比研究
青岛理工大学工学硕士学位论文3.3.1试验设备.…183.3.2直接拉伸试验….193.3.3楔型劈裂试验..213.3.4三点弯曲试验.223.3.5四点弯曲试验.22第4章试验结果.234.1编号规则..234.2试验结果.234.3试...
