Components are then combined or integrated into composite applications to provide services in the third layer.
然后,将组件结合或集成到复合应用程序中来提供第三层的服务。
By using this layer of abstraction, consuming applications can easily swap out the dictionary provider they use.
通过这个抽象层,消费应用程序很容易切换使用的词典提供程序。
Service components: Realize services, possibly by using one or more applications in the operational systems layer.
服务组件:实现服务,可能通过使用“可操作系统”层中的一个或多个应用程序来进行。
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