When it receives the right radio signal, from, say, a mobile-phone network, aircraft or satellite, the device may blow up, shut down, or work differently.

当它从手机网络、飞机或卫星接收到恰当信号时就会爆炸、关闭或是改变运作方式。

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Pixelation occurs when the digital signal bounces off buildings, hillsides, trees or even passing aircraft.

数字信号在建筑物、山坡、树木或者甚至掠过飞机时，会发生发射，这时会出现像素问题。

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Reaching the designated area around midnight, the aircraft received the proper recognition signal from the ground.[7]

飞机在午夜前后到达指定区域，看到地面上出现了正确的识别信号。

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The drop reflected a steep decline in commercial aircraft demand and little growth in orders that signal future business investment.

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The Lexington Institute's Loren Thompson says those mishaps usually result from a simple break in the line-of-sight connection between a plane and the satellite that controls it--often when one of the aircraft's own wings maneuvers into the path of the signal.

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Each will receive the same TV signal but at a slightly different time because of the reflections and interactions with aircraft flying in their vicinity.

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