The FBI reports indicate agents likely turned to the GPS tracking device after it became increasingly difficult to tail her physically.

FBI的报告显示，特工们在对一个人跟踪越来越困难时，倾向于使用GPS跟踪设备。

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Happy Feet will be released into the Southern Ocean, complete with GPS tracking device.

快乐大脚将带着GPS跟踪装置，被放生到南大洋。

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In 2008, the company installed GPS tracking equipment on its delivery trucks. Orion is layered on top of this foundation.

2008年，公司在运货卡车上安装了GPS追踪系统，而Orion则建立在这一基础上。

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But in February 2010, he violated his probation by cutting off his GPS tracking bracelet.

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There are two separate issues here which the judge ruled on in regards to GPS tracking devices.

FORBES: St. Louis Judge Not Waiting For Supreme Court's GPS Tracking Decision

They also use more sophisticated equipment, such a GPS tracking devices and radar, to stalk their prey.

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