察隅的手机讯号不太稳定，很长一段时间手机无法联网，电话也常常不灵，只有短信最有用。
Zayu mobile phone signal is not stable, a long time the phone can not be networked, the phone is often not working, only the most useful text messages.
苹果也承认其用来测算iPhone 4新款手机以及其他款iPhone手机讯号强度的程序“完全错误”，并许诺用免费软件来弥补现在的状况。
Apple also admitted that the formula it used to calculate signal strength in its new iPhone 4 and other iPhone models, was "totally wrong", and vowed to remedy the situation with free software.
电视台、无线电台和手机公司倚靠这类铁塔传送讯号。
Television, radio, and cell phone companies depend on such towers to transmit their signals.
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