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transponder

美音:[træns´pɔndə ]点这儿播放单词美音发声
英音:[træns´pɔndə ]点这儿播放单词英音发声
n.[无]异频雷达收发机

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transponder为短语/超纲词汇

transponder


n[C]
[Date: 1900-2000; Origin: transmitter + responder]
technical a piece of radio or radar equipment that sends out a signal when it receives a signal telling it to do this