A service data object is often used to transfer data from one application to another.
服务数据对象通常用于将数据从一个应用程序传输到另一个应用程序。
Like a class object, the requester application is capable of treating the service as one.
如同类对象，请求者应用程序能够将服务看作是一个整体。
Like a class object, the requester application is capable of treating the service as one.
如同类对象，请求者应用程序能够将服务看作是一个整体。
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