Radio frequency identification (RFID) and more sophisticated technologies for product tracking within supply chain management systems are being experimented in some countries.

一些国家目前正尝试在供应链管理系统内通过无线射频识别和更复杂的技术来追踪产品。

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A far simpler kind of chip called a radio-frequency identification (RFID) tag, which sends a tiny quantity of data over a short range when activated, can already be manufactured for 4 cents apiece.

有一种更简单的芯片叫做无线射频识别(RFID)标签，它在被激活之后可以在小范围内发送很短的一段数据，现在，其造价只要4美分一片。

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Unlike previous ones, the e-passports contain biometric data embedded in a radio-frequency identification (RFID) chip, along with the usual mugshot and optical bar-code.

跟上一代不同，电子护照除了包含照片及光感条码之外，还记有生物体征数据，植在无线电频率识别(RFID)芯片上。

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Alliance Tech claims its system is the first radio-frequency identification (RFID) system to track trade show and conference-goers.

FORBES: Magazine Article

Radio-frequency identification (RFID) tags used for tracking items like shipping containers and pallets of goods have been around for years.

ECONOMIST: Tech.view

John Jay High School is one of two schools piloting the programme, which eventually aims to equip all student badges across the district's 112 schools with radio-frequency identification (RFID) chips.

BBC: Pupil Hernandez, who refused to wear RFID, loses appeal