这将对源系统的资源使用率造成负面影响，因为需要对来自联合服务器的子操作做出响应。

This impacts the resource utilization at the source systems negatively in that they need to respond to the sub-operations from the federation server.

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另外，从源系统接收到的数据量和需要通过联合服务器的数据量也影响资源使用率。

Also, the amount of data that is received from the source systems and needs to go through the federation server impacts the resource utilization.

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联合服务器仅在处理从使用者接收到的请求时才会使用资源。

The federation server only utilizes resources when it processes a request that it receives from the consumer.

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