natural organic pigment
... 合成无机颜料 synthetic inorganic pigment 天然有机颜料 natural organic pigment 合成有机颜料 synthetic organic pigment ...
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制造油墨用的颜料有多种，例如：天然和人造无机颜料，合成有机颜料和碳黑。
There are many types of pigments for the production of printing inks, such as natural and manufactures inorganic pigments, synthetic organic pigments and carbon black.
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