The natural haematochrome extracted from plum skin is a kind of safe and non - poisonous colorant.
从中提取天然红色素是一种安全无毒食用色素。
If the hair graying is inreversible, hair colorant is the main choice for the masking of hair color change.
在无法逆转头发变灰情况下，着色剂是恢复头发颜色主要方法。
This article describes the use of organic colorants as the optical recording media, such as polymethine cyanine, phthalocyanine, naphthocquinone and photochromic compounds.
介绍了用作光学记录介质有料,如多甲川菁、酞菁、荼醌以及光变色化合物等。
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So, what we found is that you can use a really special colorant called, ultramarine blue.
所以我们发现可以用一种非常特色，深蓝色。
100% My friend, no preservatives or colorants.
100％不含防腐或着色。
And dimethicone just has a little bit of the Blue 1 colorant.
二甲基硅氧烷只有一点蓝色 1 号着色。
This is water with just a little bit of Violet 1 colorant, versus when I do the same thing with dimethicone.
这是水加了一点紫色着色，这边则是我用二甲基硅氧烷做同样事情。
Fireworks tend to fall back down into bodies of water, polluting them with propellants and colorant residue.
烟花往往会掉回水体中，并被推进和着色残留物污染。
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中提取
天然红色素是一种安全无毒
街日报 
料,如多甲川菁、酞菁、荼醌以及光变色化合物等。
色
地球
和
