也有一个这样的问题，如果管理数据流，集线器可能需要按客户要求定义接口。
There is also the issue if managing data flow in which case hubs may need to be customized to specific interfaces.
也有一个这样的问题，如果管理数据流，集线器可能需要按客户要求定义接口。
There is also the issue if managing data flow in which case hubs may need to be customized to specific interfaces.
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