Transmitter

来自Big Physics
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wiktionary

ref 

transmit +‎  -er


etymonline

ref

transmitter (n.)

1727, "one who transmits," agent noun from transmit. In telegraphy from 1844. Meaning "apparatus for transmitting radio signals" is from 1934.

取自“https://www.bigphysics.org/index.php?title=Transmitter&oldid=27697”