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|offset printing||A printing process in which ink is applied to the surface of a cylindrical plate bearing an image of the type to be printed. The plate transfers the ink to a roller that in turn applies it to paper. See also letterpress printing.|
A very thin and translucent paper used during the age of typewriters for correspondence and carbon copies. Shown here are three A4 sheets of onionskin.
|opacity||The degree to which light will show through a paper. See also calcium carbonate.|
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