In the example, it is necessary to get a customer instance before accessing the associated orders because of the dependency between these two business objects.
在该例中，因为两个业务对象之间具有从属性，所以在访问相关的订单之前，有必要获得一个客户实例。
2
Patent Family Tree logic applies the business logic to generate an XML dependency graph for the patent.
专利系谱逻辑应用业务逻辑来生成专利的XML从属关系图。
3
Delegate the dependency operation to the Business Delegate pattern.