10-year-old Yang Jixin from Shanghai is also a sports lover.She has trained in sports such as tennis since she was very young and has been in sailing training for over a year.She is an active girl.Whether she is fighting the wind and waves on the sea or standin...
采用偏硼酸锂和四硼酸锂混合熔剂熔融法制样,波长色散X射线荧光光谱法测定重晶石中钡、锶、铁、铝、硅.采用理论α系数和经验系数相结合的方法校正元素间的基体效应.测定重晶石试样各组分的相对标准偏差(RSD,n=12)均小于5.5%,结果与化学分析法吻合. 著录项 来源 《2017年全国质检系统X射线分析技术学术研讨会》...