最后，介绍基于PDA移动导航定位系统的实现及其应用。

At last, the paper presents the implementation and application of the mobile navigation and positioning system based on PDA.

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移动导航定位系统是对移动目标实施自动动态导航的系统。

The mobile navigation and positioning system is used to carry out dynamic auto-navigation of mobile objects.

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请注意，虽然对于桌面系统来说，输入并搜索的方法要快于链接导航，但对于移动设备来说并非如此。

Note that, although the input and search method might be quicker than link navigation with a desktop system, this is often not the case for mobile devices.

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