Actually it's a simple cellular tower that was built in 2005.
实际上，它仅仅是始建于2005年的一座非常普通的蜂窝式铁塔。
It may instead be using "cell tower triangulation" to measure your distance from the nearest cellular network towers, or even doing a lookup from a database that maps wifi hotspots to GPS coordinates.
它或许通过最近的蜂窝塔或者是Wifi热点来测量你所在的位置。
Bandwidth for 3g cellular may further be limited by cell tower bandwidth in some areas.
用于3g手机的带宽可能会进一步受到某些区域手机发射塔带宽的限制。
Bandwidth for 3g cellular may further be limited by cell tower bandwidth in some areas.
用于3g手机的带宽可能会进一步受到某些区域手机发射塔带宽的限制。
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