In different software, for exactly the same two kind of precise color, its name may be different.

In order to complete this picture well, I bought a new set of colored pens.

The operation is simple convenience, set the color be accurate, service life long.

That played havoc with the color register for four-color printing, since the ink, applied one color at a time, required pinpoint calibration to avoid badly aligned, muddy illustrations.

In this paper, the composition of color register system is introduced, and illustrate in detail how dose tension produce in the sport process.