coloring material造句

a reddish coloring material found in some algae.

The coloring material of logwood is used in dyes, inks, and stains.

a dye or other coloring material that is used in microscopy to make structures visible.

This invention relates to a cylinder press device and a printing method using powder type coloring material.

The coloring material results from contact of the water with organic debris, such as leaves, needles of conifers and wood, an in various stage of decomposition.

The brown pigments are major part of coloring materials for food.