| 单词 | reversal process | 
| 释义 | reversal process [ri`vǝr·sǝl ´prä·sǝs]  GRAPHIC ARTS A method in which a positive is produced from the plate or film exposed in a camera; the negative and positive stages are often produced from the same emulsion layer, with no separate printing material required; only one copy can be made at a time.  | 
	
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