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。
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。
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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