Modifying the mapping definition, rather than requiring changes in application code, often handles minor changes in the XML document structure.
修改映射定义(而不需要改变应用程序代码)通常处理XML文档结构中微小的变化。
This structure consists of the interface's UUID, major version and minor version as fields.
这个结构的字段是接口的UUID、主版本和次版本。
Using the element of the root rule, the major and minor rules become part of the overall rule structure.
使用根规则的元素，major和minor规则成了整个规则结构的一部分。
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