Have you ever known Dorothy in the magical Land of Oz？　　I think it’s one of the best-known classic children’s story b......

Recently， I moved from Beijing to a very small town on the west coast of Ireland， which is to say， I went from a bustling1 ......

Well-formed crystals of emerald, Be3Al2Si6O18 : Cr, were easily grown from an Na2OMoO3 flux by an isothermal technique. ......

分析了天然及优化处理祖母绿的激光拉曼鉴别特征。先使用显微放大观察确定有无充填裂隙，确定位置后，再利用激光拉曼光谱进行检测，确定......