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screen

a flat surface capable of displaying pictures and words â– verb to investigate or check people or things for a specific fault or danger The information was screened to check that it was completely accurate.

COMMENT: Photographic screens have varied degrees of fineness. according to the subject matter and type of paper used. The dots vary between 40 and 200 lines per inch. Typical screens are 50 to 60 for newsprint, 80 to 100 for MF and SC papers, 120 to 133 for imitation art papers and 150 or more for high-grade art papers.

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screamer		screen angle