For elementary and secondary schools, and no other entity or individual may engage in such distribution. 其他任何单位或者个人不得从事中小学教科书的发行业务。
A convenient calculation method in the titrimetric analysis by setting the elementary entity on the basis of National standards was mainly introduced. 介绍了一种利用国家标准来确定滴定分析中的基本单元,并列式计算的简便方法。
On the correct usage of elementary entity in Chemistry 论化学中基本单元的正确使用
A Elementary Exploring of Community Education Entity in Rural Market Town 农村集镇社区教育实体初探
We must classify the elementary data item one by one in every user view according to the entity classification of community health information conceptual data model, and then demonstrate them with UML object graph. 要根据社区卫生信息数据模型的实体分类,将每个用户视图中的基本数据项逐一归类,并以UML对象图表示。