The original radar combined these two things, as its English name radar showed: Radio Detection and Ranging.

最初的雷达正如它的英文名称“雷达”(radar)所表示的那样，包括两个方面：无线电测物和测距。

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The simple detection of a radio signal will be sufficient to answer this most basic of all questions.

对无线电信号的简单探测就足以回答这个最基本的问题。

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Using radio frequency or microwave technology for breast cancer detection has been proven by researchers in the US, Canada and UK.

利用无线电频率或微波技术进行乳腺癌检测已经被美国、加拿大和英国的研究人员们所证实。

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In 1935, RADAR (Radio Detection and Ranging) was first demonstrated by Robert Watson-Watt.

CNN: Thursday,

Then came Radio Detection and Ranging, or radar.

CNN: STORY HIGHLIGHTS

Last March Free North Korea Radio claimed to have equipped three North Koreans with satellite phones, which offer a lower risk of detection.

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