他们开着车，带着德国制造的无线电探测器来跟踪并搜寻手机用户。
"They patrol with vehicles carrying German-made radio detectors to track down and hunt users," he said.
由于月球阻碍了与探测器的直接无线电通信，中国首先必须把一颗人造卫星送入月球轨道上的一个点，人造卫星可以从那里向航天器和地球发射信号。
Because the moon's body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot where it could send signals to the spacecraft and to Earth.
如果那辆救护车的无线电开着，我可以用频率探测器找到它。很好。
If the ambulance radio is on, I can use a DF sweep to find it. Good.
如果那辆救护车的无线电开着，我可以用频率探测器找到它。很好。
If the ambulance radio is on, I can use a DF sweep to find it. Good.
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