·2,447,543篇论文数据，部分数据来源于NoteExpress
"Extends" allows an extending element to inherit characteristics of the base element.
“扩展”允许一个扩展元素继承基本元素的特性。
For clarity, the entity name is composed of the domain identifier and the base element name.
为清晰起见，实体名称由域标识符和基本元素名称组成。
The specialized content model must be consistent with the content model for the base element.
专门化的内容模型必须同基本元素的内容模型一致。
应用推荐