| 单词 | radiovisor | 
| 释义 | > as lemmasradiovisor   radiovisor  n.  Brit.  , U.S.   now historical (chiefly U.S.) an early electromechanical form of television developed by Charles F. Jenkins; cf. televisor n. 1.ΚΠ 1928    Daily Express 5 Sept. 13/5  				A moving picture has to be produced by means of apparatus which may be termed a radio-screen, radio-visor, or televisor. 1931    Daily Express 21 Sept. 8/2  				It is now being accepted that an apparatus for receiving visual signals by wireless can be conveniently called a radiovisor. 1996    N.Y. Times 		(Nexis)	 19 Apr.  c1/1  				A large part of the third floor is taken up with..curios like the 1931 Jenkins Radiovisor, a mechanical television that used a slotted, spinning wheel to transmit images. < as lemmas  | 
	
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