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

颜加法混和三为红、、蓝,减法混和三则是它们补,即:青、品红和黄,染料三是后者。

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

矫正差复合式透镜：即是红、和蓝三差都已矫正。

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.

本文从度学理说明三意义,并详细论述活性染料及分散染料三合成和筛选则。

As a result of any all make use of the primary colors of the combination of different proportioner, ink color change is the use of this law.

由于任何一栽颜都能诳骗不一差别比例搀和调不败，油不朱相保持正是诳骗这个次序。