Much of the money for Pakistan was spent on physical security, like fencing and surveillance systems, and equipment for tracking nuclear material if it left secure areas.

也花费很多财力用于巴基斯坦核武器的物理安全，如隔离和监督系统，以及核原料离开安全区域的跟踪设备。

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IP-based video surveillance has improved the effectiveness of video security by leaps and bounds over the analog CCTV equipment we've grown so accustomed to over the years.

相对于我们已习惯多年的模拟CCTV视频安防设备，基于IP的视频监控在其安防视频监控效力的改进上可谓是突飞猛进。

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It deals mainly with a remote smart home system, which can achieves home security protection, remote surveillance and smart electron equipment remote controlling based on PIC16F877 microprocessor.

介绍了利用PIC16 F877单片机控制，实现家居安防、家居的远程监测以及远程智能家电控制的基于网络技术的远程智能家居系统。

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But it helps that America has been assisting Russia and others with security upgrades, including better fences, surveillance equipment and radiation monitors, as well as security training, at military and civilian sites where nuclear materials are used or stored.

ECONOMIST: Preventing nuclear trafficking is easier than policing it

Teams from the CIA, National Geospatial-Intelligence Agency, and National Security Agency studied it with satellite and other surveillance equipment.

WSJ: U.S. Rolled Dice in bin Laden Raid