The figures were painted in black pigment on the natural red clay ground. finishing details were then incised into the black pigment revealing the red ground.
用黑色颜料将图案描绘在天然红色的黏土坯体上，到修整时再在黑色图案中刻画细部，露出红色的坯体。
It proves that black rice pigment can serve as a natural healthful pigment additive.
论证了黑米色素可以作为一种具有天然保健功能的色素添加剂。
Carbon black: a fine, intensely black pigment obtained by burning natural gas or oil with restricted air supply.
碳黑：在缺乏空气的情况下，燃烧天然气或油产生的一种细面极黑的颜料。
Carbon black: a fine, intensely black pigment obtained by burning natural gas or oil with restricted air supply.
碳黑：在缺乏空气的情况下，燃烧天然气或油产生的一种细面极黑的颜料。
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