| 单词 | continuous tone | 
| 释义 | > as lemmascontinuous tone   continuous tone  n. see quot. 1968. ΚΠ 1933    C. W. Gamble Mod. Illustr. Processes vii. 125  				We may take..an artist's drawing of a landscape of washes of black pigment upon white paper..as representing a drawing in ‘continuous’ tone. 1967    E. Chambers Photolitho-offset iv. 43  				With the indirect method the first negatives are made as formerly and they may be in continuous-tone or in dot formation. 1968    Gloss. Terms Offset Lithogr. Printing 		(B.S.I.)	 10  				Continuous tone, an image in which tonal gradation is produced by changes in density. < as lemmas  | 
	
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