Wei Ping from the center says all the landscape lamps and the illumination system in the public area, offices and theaters will be switched off.

魏平，大剧院的负责人表示，到时，所有公共场所的景观灯，照明系统，办公室以及剧院内部的灯都将熄灭，取而代之的美妙的音乐和舞曲，只有用于紧急情况的火警灯会亮着。

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A ping flooding attack is a simple DDoS attack in which a computer sends a packet (ping) to another system with the intention of uncovering information about services or systems that are up or down.

ping洪水攻击是一种简单的DDoS攻击。在这种攻击中，一个计算机向另一个系统发送一个包(ping)，以找到关于服务或系统的信息。

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So there are a couple things, the ping back system is something which we had thought about putting a slide in for.

那么，这里有两个问题，我们曾经考虑加入一页幻灯片来讨论ping back系统。

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Jade Signature, a luxury building under development in Miami, will include a communal teen lounge with the latest motion-sensor videogames, a computerized blackboard system and ping-pong tables.

WSJ: The New Luxury Kids' Rooms��WSJ Mansion

Napolitano responded that Tsarnaev's departure did "ping" in the homeland security screening system, but she noted that because the FBI's investigation in 2011 found no suspicious activity, there was no reason to follow up.

CNN: Bombing suspect not on terror watch list