本文介绍了非接触性印刷废纸概况，研究了酶法和化学法脱墨的情况；
This paper introduces the general situations of non-impacted printed waste paper, investigates the complexion of enzymatic and chemical deinking.
蓝版：减色彩印法的四张印版之一。它需用青蓝色墨印刷。
Blue printer: One of the four printing plates in a subtractive colour process which is to be printed in cyan ink.
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