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Permission system comprises four main parts: user part, object part, operation part and task.

系统分为四部分：主体部分、客体部分、操作部分和任务部分。

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These functions are performed at each signaling point in the network and ensure that the user part messages originating at one point are delivered to the same user part at the destination point.

这些功能在网络中的每个信令点处得到执行并要确保将某点发出的用户部分消息送达到终点的同一个用户部分。

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It is a user replaceable part and they expect the consumer to replace it when they have burn through it. (think ink-jet cartridge) These TVs are not designed to be on 6-8 hours a day but if you are going to buy one and use it as a primary TV, make sure you know how many bulbs the warranty will replace.

ENGADGET: HDTV Buying Guide: Extended Warranties HD

Syncing Google Play purchases between phone and tablet -- with practically no involvement on the end user's part -- provides real value.

ENGADGET: Editorial: Windows Phone 8 looks good, but can it uproot those entrenched in other ecosystems?

Newly released ZuneTVWatcher beta acts as a liaison by monitoring your recorded TV show folder and automatically converting files to a .wmv format, meaning way less manual labor on the user's part.

ENGADGET: ZuneTVWatcher beta to bridge Media Center gap