In the area of electronic security detectors, passive infrared detector is widely used because of their low cost, technical performance and stability of by users and professionals welcome.

在电子防盗探测器领域，被动红外探测器的应用非常广泛，因其价格低廉、技术性能稳定而受到广大用户和专业人士的欢迎。

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Please set down your belongings and step through the metal detector/security gate.

请您拿出随身物品，并通过金属探测器/安检门。

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Millions of airline passengers travelling through Russia will soon have to take a lie detector test as part of new security measures.

数百万途经俄罗斯的航空旅客，很快就必须接受测谎器测试，此为新安全措施的一部分。

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But again, just less than a year ago we know that somebody got on an airplane with the intent of blowing it up using a device that would not have been picked up by a metal detector and that's cause for quite a bit of security concern.

WHITEHOUSE: Press Briefing