| 单词 | slide changer | 
| 释义 | > as lemmasslide changer   slide changer  n.  Brit.  , U.S.  ΘΚΠ society > leisure > the arts > visual arts > photography > viewing of photographs > 			[noun]		 > projecting on to screen > projector > parts of tinter1891 projection lens1894 lamp-house1912 slide carrier1953 flash-meter1957 slide changer1959 1959    IRE Trans. Mil. Electronics 3 97/1  				Like a projection slide changer, we can observe one slide while discarding the slide already observed and replacing it with a new one. 1962    Which? Mar. 69/1  				We did not test fully automatic projectors, but 6 had semi-automatic slide changers built in. < as lemmas  | 
	
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