The ability to control demand would make it easier to fit large amounts of intermittent renewable energy into the electricity system without running expensive backup generation.

拥有控制需求的能力，意味着电力公司无需维持昂贵的应急发电设备，就可以较轻易的使大量间断的可再生能源回输至电力系统。

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The APC's job is to control the size of the cluster hosting a given application based on the demand on the system.

APC的工作是基于对系统的需求控制承载指定应用程序的集群大小。

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The system should provide mechanisms to authenticate users with user data residing in the on-premise environment, and authorize with access control data residing in an on-demand environment.

系统应该提供相应的机制，以便使用自行管理环境中的用户数据对用户进行身份验证，并使用按需环境中的访问控制数据进行授权。

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Michael Boyd, president of Colorado aviation consulting firm Boyd International Group, is critical of the recommendation, saying the country could handle the current flight demand -- and cut delays -- by improving its air traffic control system.

CNN: Study: Flight delays to get worse as economy improves