Blue printer: One of the four printing plates in a subtractive colour process which is to be printed in cyan ink.
蓝版：减色彩印法的四张印版之一。它需用青蓝色墨印刷。
It is the ink colour standards used in North America for process colour printing.
是北美洲所用的四色彩印油墨的标准规格。
It is the ink colour standards used in North America for process colour printing.
是北美洲所用的四色彩印油墨的标准规格。
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