Use of the other CAI component interfaces is optional.

使用其他CAI组件接口是一个可选的选项。

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As such, component interfaces and implementations come into focus when distinguishing granularity.

因为这样，在区分粒度时，需要关注组件接口和实现。

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If an aggregated application functions as a WSXL component in a collection, it must implement the WSXL component interfaces.

如果一个聚集的应用程序要充当集合中的一个WSXL组件，那么它就必须实现WSXL组件接口。

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