Surveillance for emerging diseases contributes to global security.

监督新出现的疾病有助于全球安全。

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When the choreography demands that the robots "act happy", for instance, they flutter like butterflies, a move not strictly necessary for security surveillance.

例如当舞蹈编排需要机器人“表现出欢快”时，它们会像蝴蝶一样鼓翼，这是一个与安全监视毫无关系的动作。

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A case study of the Olympics security system and related products, boundary surveillance system, smart soldier system and more will highlight the public security sector.

奥运会安保系统和相关产品的案例研究、边境监视系统、智能士兵系统和更多内容将在公共安全板块亮相。

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Mr. Kelly said the department had been working with a security-and-surveillance systems manufacturer based in Britain, along with the London Metropolitan Police, to develop the device.

WSJ: Police Test New Scanner

Since then, the LAPD has provided more than 50 police officers and their families -- many of whom were named in the manifesto -- with security and surveillance details.

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The Department of Homeland Security's surveillance program -- and our acceptance of programs like it -- is just another step in the direction that Franklin so wisely cautioned us to guard against.

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