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在一般的手机上都有一个信号灯，那么，您知道这个信号灯有什么作用吗？通过它，我们能够了解到什么信息吗？笔者对这个问题作了仔细研究，得出了几个小小的经验，写出来供大家参考。 １、绿灯规则闪烁 表示手机在覆盖区内，此时您可以拨打或接听电话，正常使用手机。如果您发?
There is a semaphore on a typical cell phone, so do you know what that semaphore does? Through it, we can understand what information? I made a careful study of this issue, come to a few small experiences, written for your reference. 1, the green light flashing means that the phone is in the coverage area, at this time you can make or receive calls, the normal use of mobile phones. If you send?