目前为止，复合应用程序中的组件附带了一个静态的 WSDL 文件，定义了组件的属性和操作。
So far, components used in composite applications come with a static WSDL file that defines the component's properties and actions.
尽管组件可在不同应用程序中重用，但是静态WSDL文件会成为一个瓶颈，因为它可能会对不同的场景要求使用额外的属性和操作。
Although components are reusable in various applications, the static WSDL file can be a limitation because it might be desirable to have additional properties and actions in different situations.
该过程中，大组件需要移动多次，增加了在大 NSF 文件上运行压缩操作所需的时间。
This process can cause large components to be moved multiple times, increasing the time required to run the compact operation on a large NSF file.
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