And carrying GPS receivers to reveal their secret journeys.
并戴着 GPS 接收器揭示他们的秘密旅程。
GPS receivers
原声例句
猫的秘密生活
PBS趣味科普
When one reaches a GPS receiver, it compares its local time to the time that message was sent.
当某条信息到达 GPS 接收器时，它会比较本地时间与消息发送的时间。
Life Noggin
GPS relies on real-time satellite data that streams down to GPS receivers.
GPS 依赖于传输至 GPS 接收器的实时卫星数据。
英语百科
GPS navigation device
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A GPS navigation device is a device that accurately calculates geographical location by receiving information from GPS satellites. Initially it was used by the United States military, but now most receivers are in automobiles and smartphones.
The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of a minimum of 24, but currently 30, satellites placed into orbit by the U.S. Department of Defense. Military action was the original intent for GPS, but in the 1980s, the U.S. government decided to allow the GPS program to be used by civilians. The satellite data is free and works anywhere in the world.