第1个回答 2009-02-05
Mobile working principle: the voices into electronic signals to reach the other side and then replaced by the voice. In people's daily use and strong to bring a lot of convenience. However, electromagnetic waves emitted by mobile phones on the human body have a certain hazards, in an airport or aircraft to fight mobile phone may be causing accidents.
第2个回答 2009-02-05
先鄙视一楼!
Mobile phone working principle:sound is changed into electronic signal,and then is changed into sound again.But the electromagnetic wave that a mobile gives off will do harm to human beings,and it may cause accidents when you make a call on a airplane or airport by mobile .本回答被提问者采纳