| 单词 | pressel | 
| 释义 | presseln.  An electric switch that is operated by a push-button; (originally) one hanging from the end of a length of flexible wire; (in later use) esp. one on a piece of radio communication equipment , typically permitting transmission when depressed and reception when released. Now chiefly  pressel switch. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > control(s) > 			[noun]		 > buttons tit1864 push-button?1874 press-buttonc1876 push1886 pressel1892 press-cock1932 stop button1940 touch key1957 society > occupation and work > equipment > machine > parts of machines > control(s) > 			[noun]		 > switch > types of pin switch1865 limit switch1886 press-key1896 rocker switch1898 pressel switch1916 snap switch1926 toggle switch1938 microswitch1941 1892    T. O'C. Sloane Standard Electr. Dict. 434  				Pressel, a press-button often contained in a pear-shaped handle, arranged for attachment to the end of a flexible conductor, so as to hang thereby. 1911    W. P. Maycock Electr. Wiring 		(ed. 4)	 ii. 159  				Instead of a cord pull-switch, one might connect an ordinary or two-plate ceiling-rose to the switch leads..and hang therefrom a ‘pressel’ or suspension or pendant switch. 1916    G. Frankau Guns 21  				And he hears, as he plays with the pressel-switch, the strapped receiver click on his ear that listens, listens. 1971    B. W. Aldiss Soldier Erect 79  				I handed the microphone to Gor-Blimey. After some frigging about with the pressel-switch until he got things right, he spoke to Blue Spot. 2000    Engineering 		(Nexis)	 1 Nov. 43  				Including microphones, handsets, headsets and pressel switches,..the range was designed to keep pace with advancements in digitised battlespace. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). <  | 
	
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