| 单词 | keysending | 
| 释义 | keysendingn. Telegraphy and Telephony. Now rare.   The use or operation of a keysender. ΚΠ 1904    Official Gaz. 		(U.S. Patent Office)	 19 Apr. 1924/1  				A system of telegraphy comprising a..key sending mechanism. 1938    T. E. Herbert  & W. S. Procter Telephony II. ix. 393  				Each manual exchange adopting direct 7-digit keysending utilizes a suitable automatic exchange as a routing centre. 1950    J. Atkinson Herbert & Procter's Teleph. 		(new ed.)	 II. xvii. 558/2  				There are three alternative arrangements of the keysending equipment. 1982    Brit. Patent 2,086,188 1/1  				Dialling as used herein is used..so as to cover keysending. This entry has been updated (OED Third Edition, December 2012; most recently modified version published online March 2022). < | 
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