| 单词 | lens cap | 
| 释义 | > as lemmaslens cap   lens cap  n. a cap that fits over the end of a lens tube, used to protect the lens and, in early cameras without shutters, for regulating exposures. ΘΚΠ society > leisure > the arts > visual arts > photography > camera > parts and accessories of camera > 			[noun]		 > lens > lens cap lens cap1882 1882    Photogr. at Home: its Appliances & Apparatus for Amateurs 11  				A little shield covered with black velvet..occupies the place of the ordinary lens cap. 1897    Sears, Roebuck Catal. No. 104. 474/2  				The front of the camera can be removed if desired and exposure made with a lens cap. 1965    Mrs. L. B. Johnson White House Diary 17 June 		(1970)	 290  				I wanted to be darned sure I didn't lose the lens cap on the camera. 1966    M. LaCour  & I. T. Lathrop Photo Technol. iv. 48/2  				It should seldom be necessary to clean a lens which has been protected from dust and fingerprints with a lens cap. < as lemmas | 
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