Translate the following paragraph: Engineering drawings are often referred to as "blueprints" or "bluelines." However, the terms are rapidly becoming an anachronism, since most copies of engineering drawings that were formerly made using a chemical-printing process that yielded graphics on blue-colored paper or, alternatively, of blue-lines on white paper, have been superseded by more modern reproduction processes that yield black or multicolor lines on white paper. the more generic term "print" is now in common usage in the U.S. to mean any paper copy of an engineering drawing.