Some families in America and elsewhere have started buying childfriendly mobile phones outfitted with GPS (Global Positioning System) technology.
美国与其他地方的一些家庭已开始购买适合儿童使用，配有GPS（全球卫星定位系统）的移动电话。
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They have started buying child-friendly mobile phones outfitted with GPS (Global Positioning System) technology.
他们已开始购买适合儿童使用，配有GPS(全球卫星定位系统)的移动电话。
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Comtech's Model MT-2012 mobile satellite transceivers feature secure global positioning system (GPS) capabilities, as well as embedded radio frequency identification (RFID) technology.