Structural specialization involves creation of the schema definition, module, and group files.
结构性专门化涉及到创建模式定义、模块和组文件。
The data instance in Listing 7 is valid with this schema and its substitution group extensions.
清单7中的数据实例对这个模式及其替换群扩展是有效的。
The code in Listing 3 shows how the constraint groups are set up in the schema group file.
清单3中的代码展示了约束组在模式组文件中是如何设置的。
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