Radio signals received from the galaxy's centre back up the black hole theory.

从该星系中心接收到的无线电信号证实了黑洞理论。

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And so it made sense to search for radio signals.

所以，探寻无线电信号是有意义的。

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All diagnostics are done remotely, using radio signals.

所有的诊断均使用无线电信号远程操作。

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The device made it possible to strengthen radio signals and to send them over long distances.

VOA: special.2010.01.31

It's all very mysterious and we send off a spaceship to investigate the markings, the radio signals from the other place.

一切都很神秘,所以我们,派遣一艘飞船去调查星球上的印记,以及那些从其他星球传来的无线电信号

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Later,Amelia's radio signals were received by a United States Coast Guard ship near the island.

VOA: special.2010.05.26

That setup, he argued, means that radio signals have to travel far greater distances and penetrate buildings.

FORBES: Wireless

As part of SETI's research, its scientists use computers to listen for radio signals from outer space.

CNN: The Internet: the final frontier for space watchers

In Guadeloupe, a team from the Harvard-Smithsonian Center for Astrophysics will study radio signals from Galileo orbiting Jupiter.

CNN: Scientists, Web watchers poised for eclipse '98