pho·to·me·chan·i·cal /ˌfotomɪˈkænɪkəl/
(a.)照相工藝的
Pho·to·me·chan·ic·al a. Pertaining to, or designating, any photographic process in which a printing surface is obtained without the intervention of hand engraving.
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photomechanical
adj : of or relating to or involving various methods of using
photography to make plates for printing