But a new breed of wireless Internet service providers using white-space frequencies will not have to pay for their spectrum.
但新成立的使用白色空间的无线网络服务营运商将无须为使用频谱而付费。
Thus, it is necessary for wireless Internet service providers to differentiate and optimize their contents and Internet interfaces properly for various mobile devices.
所以，无线互联网运营商必须区别客户的设备而提供不同的服务，例如内容，界面等。
Thus, it is necessary for wireless Internet service providers to differentiate and optimize their contents and Internet interfaces properly for various mobile devices.
所以，无线互联网运营商必须区别客户的设备而提供不同的服务，例如内容，界面等。
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