a small hand-operated lever or other device in a telegraphic transmitter, used to alternately make and break the circuit; cf. key, n.1 20.
| 单词 | θ197962 |
| 释义 | society > communication > telecommunication > telegraphy or telephony > telegraphy > telegraph > [noun] > transmitter > key (3) telegraph key1848 a small hand-operated lever or other device in a telegraphic transmitter, used to alternately make and break the circuit; cf. key, n.1 20. Morse key1858 a key forming part of the Morse telegraph apparatus, which is pressed and released to send signals in Morse code. tapper1876 That which taps or lightly strikes, as a hammer for striking a bell; spec. a key in an electric telegraph which is depressed (with a tapping… |
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