| 单词 | dot-sequential | 
| 释义 | > as lemmasdot-sequential   dot-sequential adj. now historical and rare designating a system of colour television in which dots (sense  A. 11) of the three primary colours are formed in succession by multiple cathode ray tubes and combined into a single image.Introduced in 1949, the dot-sequential system saw only limited success and was soon superseded by systems employing shadow masks or aperture grilles. ΚΠ 1949    Communications Oct. 5/1  				The eighth system recently announced is the dot-sequential approach with 15 color pictures and 60 fields, with a dot and line interlace. 1951    Britannica Bk. of Year 617/2  				A dot-sequential system..in which the colour is changed for each picture element or dot. < as lemmas  | 
	
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