The concept adopted basic theory of circuit-level proxy. Taking session data flow of application protocols as its objective, VAN controlled and managed integrated information systems.

网络借鉴了电路级代理工作的基本原理，以应用协议的会话数据流为对象，对信息系统进行控制和管理。

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Officers have already carried out a controlled explosion on the first van, and plan to do the same on the second.

BBC: Spain 'foils second ETA bomb'

Gordon Edwards, of the Department of Infrastructure, said the mobile camera surveillance van was a controlled unit and would be situated in areas where drivers were most likely to use their phones.

BBC: IOM govt

Van der Vaart atoned for his miss two minutes after the restart when he controlled a Crouch knockdown on his chest and powered in a left-foot shot on the turn.

BBC: Tottenham 4-1 FC Twente