subtractive primaries

基本解释

CMYK: Cyan, Magenta, Yellow, Black. Process color printing inks (subtractive primaries) to print continuous-tone images.
印刷四色：青蓝、洋红、黄、黑，称四色印刷油墨，多用于印刷连续色调之图像。
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Subtractive or colorant primaries magenta, yellow, and cyan. Substances that reflect light of one of these wavelengths and absorb other wavelengths may be mixed to produce all colors.
减色原色，染色原色：减色的或染色的品红色、黄色、蓝绿色。反射这些光波和吸收其他光波的物体可混合用来产生各种颜色。
odict.net
Achromatic synthesis: A mass under colour removal technique in which black is used to replace those parts of colours that were formed by the combination of the three subtractive primaries .
综合消色作用：是一种大量的底色消除工艺，它用黑色代替含有三原色组合的颜色部份。