Transponder

来自Big Physics

google

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1940s: blend of transmit and respond, + -er1.


Ety img transponder.png

wiktionary

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Blend of  transmitter +‎  responder.


etymonline

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transponder (n.)

1945, from trans(mit) + (res)pond + agent noun suffix -er (1).

取自“https://www.bigphysics.org/index.php?title=Transponder&oldid=50903”