Embossing of the paper that a primary color.

纸张压印一次色称一石.

When I paint it, I choose the pure black and dark blue as primary color.

新作在作画时，我选用了纯粹的黑色，和暗蓝为主题的色调。

The primary color printer you often will generate static electricity, therefore humidity control is very important.

原色印表机经常会产生静电, 因此湿度控制是非常重要的.