However, if that same user hits that page from a different laptop, it's counted because the Software Usage Tracker tool considers both device - and user-based data.

但是，如果同一用户点击该页面从一个不同的便携式计算机，它的计数因为软件使用情况跟踪工具认为这两个设备和基于用户的数据。

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After a friend posted photos of it on Reddit. com, and readers identified it as a GPS tracker, the FBI showed up at Afifi's apartment demanding he return the device.

他的一个朋友将照片放到了Reddit网上，读者识别出这是一个GPS跟踪器，FBI的人出现在亚瑟·阿菲费的住所，要求他归还那个设备。

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The star tracker is the primary part of airborne celestial navigation device. Random vibration is an important invalidation factor of the star tracker.

星体跟踪器是机载天文导航设备的重要组成部分，随机振动是其结构失效的重要因素。

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Companies like Withings, which offer an API that syncs with FitBit, just announced a competitive device called the Smart Activity Tracker.

FORBES: CES 2013: The Year of The Quantified Self?

South Korea's LG is among the latest to join the market with its Smart Activity Tracker - a bracelet device which resembles Nike's bestselling Fuelband.

BBC: CES 2013: Health and safety technology booms

However, at this point they may not need a tracker: one agent who retrieved the device took the time to list off his favorite restaurants and even congratulated him on his new job.

ENGADGET: American student finds GPS tracker stuck to car, FBI shows up to reclaim its 'federal property'