non-primary key 非主键
You can use dynamic relationships to correlate primary keys from a set of related business objects and static relationships to correlate non-primary key properties.
可以使用动态关系来关联一组相关业务对象的主键，而使用静态关系来关联非主键属性。
Dynamic relationships are typically used to correlate primary keys from a set of related business objects, whereas static relationships are typically used to correlate non-primary key properties.
动态关系通常用于关联一组相关业务对象中的主键，而静态关系通常用于关联一些非主键的属性。
This indicates that the relationship will be created for a static non-primary key property.
这表明将为一个静态非主键属性创建关系。
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