GPS设备是最热门的技术产品,但是它却很容易让你花上不少冤枉钱,最终却得不到自己想要的效果。我们在此专门解释一下GPS设备的优点,以及购买过程中可能遭遇的陷阱。简介过去,纸质地图工作的很不错——但是就像发条式手表,晶体管电视,以及汽车里的手摇车窗一样——这些都已经成为过去式了。作为今天的导航工具,便携式全球定位系统设备(GPS),所能做的事情是 GPS equipment is the most popular technology products, but it is easy for you to spend a lot of money wasted, and ultimately did not get the effect you want. We are here to explain the advantages of GPS devices, as well as the pitfalls encountered in the purchase process. In the past, the paper map worked very well - but it was like a clockwork, a transistor TV, and a hand-cranked window in a car - all of which are past tense. As with today’s navigation tools, portable GPS devices, what you can do is