| 释义 | tran·spon·der noun
 also tran·spon·dor \tranzˈpändə(r), traan-, -n(t)ˈsp-\
 (-s)
 Etymology: transponder, from transmitter + responder; transpondor, alteration (influenced by responsor) of transponder
 : a radio or radar set that upon receiving a designated signal usually in the form of a coded series of pulses emits a radio signal of its own that may also be coded — compare interrogator
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