subtractive primaries

基本解釋

CMYK: Cyan, Magenta, Yellow, Black. Process color printing inks (subtractive primaries) to print continuous-tone images.
印刷四色：青藍(lán)、洋紅、黃、黑，稱四色印刷油墨，多用于印刷連續(xù)色調(diào)之圖像。
hxc0929pd.blog.163.com
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.
減色原色，染色原色：減色的或染色的品紅色、黃色、藍(lán)綠色。反射這些光波和吸收其他光波的物體可混合用來(lái)產(chǎn)生各種顏色。
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 .
綜合消色作用：是一種大量的底色消除工藝，它用黑色代替含有三原色組合的顏色部份。