所述高频信号接收部分为一个高频接收装置，安装在 汽车的四个轮胎之间的位置上；
The high frequency signal receiving parts are high frequency receiving devices which are arranged on the four tires of a car.
大部分实现均无法检测到此种情况(相反，程序会接收到SIGSEGFAULT信号并退出)。
Most implementations can't detect this (your program receives a SIGSEGFAULT signal and exit instead).
国内手机持有率大幅上扬，尽管部分是由于只有拥有三部不同手机才能确保在巴格达各处都能接收到信号。
Mobile-phone penetration is surging, though that is partly because you need three different phones to ensure coverage throughout Baghdad.
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