Mobile IP is now the standard for supporting mobility in IP networks. It provides seamless mobility by hiding the change of IPaddress when a mobile host moves between IP subnets.

移动IP是支持IP网络移动性的标准，当移动主机(节点)在不同的ip子网之间移动时，它通过隐藏ip地址的变换提供移动时无缝的切换。

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It is impractical for mobile devices to be a host due to insufficient memory and CPU power.

由于受到内存和cpu不足的限制，要想让移动设备充当主机是不现实的。

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With the first approach, you use HATS to develop a web application that dynamically transforms host screens to modern graphical web pages that meet the requirements of mobile devices.

对于第一种方法，您使用HATS来开发一个网络程序，该程序会动态地将主机界面转化为现代的图像化网络页面，这些页面能够满足移动设备的要求。

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Pandora now has over 125 million users, Songza is a top mobile app and a host of other options from Slacker to RDIO have attracted users.

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With the online ID number, which we call Aadhaar, a person can open a bank account, get a mobile connection and, eventually, a host of government services.

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Among other things, 4G promises to improve web browsing speeds while on the move and make a host of other mobile applications much more feasible.

BBC: Ofcom to open up airwaves for 4G mobile services