三原色

Additive mixture ofcolortrichroism is red,green and blue,subtractive mixture,as its complementary colors,is cyan,ma genta and yellow,thatis the dyestuff trichroism.

颜加法三原为红、绿、蓝,减法三原则是它们补,即:青、品红黄,染料三原是后者。

Based on the colorimetry mechanism,the meaning oftrichroism is studied,as well as the synthetic and selecting principles of trichroism ofreactive and disperse dyes in particular.

本文度学原理说明三原意义,并详细论述活性染料及分散染料三原成筛选原则。

Apochromatic lens: Compound lens corrected for chromatic aberration, i.e. the three primary colours , red, green and blue are corrected. Also called Apochromat.

矫正差复式透镜：即是红、绿蓝三原差都已矫正。