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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As IBM noted in its press release today, RFID tags (Radio Frequency Identification sensors) are becoming particularly popular for the purpose of item tracking and authentication.

IBM今天在其发布会上称RFID(无线射频识别)标签在物品跟踪和识别领域的应用将越来越广泛。

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Part of the fight-back will include tracking lions fitted with radio collars in the Amboseli area in southern Kenya, close to the border with Tanzania.

部分回击策略包括，在肯尼亚南部接近坦桑尼亚边界的安博·塞利区域，跟踪安装了无线电辊环的狮子。

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Radio-tracking usually requires the tedious grind of following animals around in a vehicle and noting their positions by hand.

ECONOMIST: Elephant behaviour

On May 8th, Iain Douglas-Hamilton, the chairman of Save the Elephants, a conservation charity, announced the latest findings of his pachyderm radio-tracking project.

ECONOMIST: Elephant behaviour

Satellites beyond Earth use radio waves for tracking and communication, but the moon satellite is the only one to rely on lasers for tracking, NASA said.

CNN: STORY HIGHLIGHTS