The original white lead pigments have oxidized and turned black.
原来白色的铅颜料已经氧化发黑了。
The colouring pigments from the skins are not allowed to bleed into the grape juice.
这些果皮的色素不允许掺混进葡萄汁中。
A transparent animal doesn't have pigments, so its tissues won't absorb light.
透明生物的体内没有色素，因此它的细胞组织不吸收光线。
You can see why this type of analysis requires a knowledge of the history of pigments, right?
你能明白为什么这种分析需要了解颜料的历史了，对吧？
You've got to find out what's in those pigments, learn their composition, and that requires lab work—detective work really—in a word, Spectroscopy.
你必须找出那些颜料里有什么，了解它们的组成，这需要实验室的工作——真正的探测性工作——也就是光谱学。
The conventional view is that carotenoids are meaningful because they are rare: healthier males can forage for more of the pigments than can their inferior counterparts.
传统的观点认为类胡萝卜素之所以有意义，是因为它们很罕见：健康的雄性可以比它们的同类寻找到更多的色素。
You'd have to know what pigments he used, in other words, what ingredients he used to make different colors of paint, because the ingredients used in paints and binding agents have changed over time.
你要知道他使用了什么颜料，换句话说，他用了什么原料来制造不同颜色的油漆，因为油漆中使用的原料和结合剂都随着时间的推移而改变。
The Romans used natural pigments on their fabrics and walls.
罗马人使用天然颜料染布和刷墙。
植物也有色素。
This is because of pigments, which reflect light and make what the eye sees as colors.
这是因为色素的作用，它们反射光线，使眼睛看到的东西呈现出颜色。
When we feel excited or angry, our heart can send more blood to the face and the pigments in the skin become red.
当我们感到兴奋或生气时，我们的心脏会向面部输送更多的血液，皮肤中的色素就会变红。
What is still not fully understood, however, is why some trees resort to producing red pigments while others don't bother, and simply reveal their orange or yellow hues.
然而，至今仍不完全清楚，为什么有些树木倾向于制造红色素，而有些树木不去刻意制造色素，但还是会呈现出橙色或黄色。
They also absorb strongly in the UV-C, suggests that they might have originally acted as antenna pigments.
它们对 C 类紫外光中也有很强的吸收能力，这表明它们最初可能是天线色素。
The main re-ceivers of pigments and glazes of the Spanish industry are: Italy, Egypt, Portugal, Morocco and Argelia.
西班牙陶瓷色釉料的主要进口国包括意大利、埃及、葡萄牙、摩洛哥和阿赫利娅。
These are very concentrated pigments.
这些氧化物是非常浓缩的天然色素。
One of a family of natural pigments called anthocyanins.
天然色素花色素苷家族的一员，也被称为锦葵色素- 3 -葡糖苷。
This is because nature is unable to produce blue pigments.
这是因为自然界无法制造产生蓝色色素。
Second, our lips don't have the same glands and pigments as ordinary skin.
第二，嘴唇不像其他肌肤有腺体和色素。
They helped create new drugs, brighter pigments and improved booze distillation.
他们帮助制造新的药物，更好的颜料和改进酒精蒸馏法。
Most people use previously, to the 18th century, pigments that were produced from earth.
直到18世纪，大多数人所用的颜料都是由天然物质制成的。
The pigments used come from non-transparent minerals and plants such as malachite and cinnabar.
使用的颜料来自于不透明矿物和植被，如孔雀石和朱砂。
Unlike paint or ink or most other things that produce colors, butterfly wings have no pigments.
油漆和油墨以及其他很多物质都能制作出色彩，而蝴蝶的翅膀与它们不同，它没有这种颜料。
Cones in each half of the retina are adapted to produce different light-filtering pigments.
每半边视网膜上的锥体能够产生不同的光过滤颜色。
Various pigments, inks and paper treatments will respond differently to some wavelengths of light.
不同的颜料、油墨和纸张处理对不同波长的光会有不同的反应。
The pigments preserved in fossils, including a 120 million-year-old bird, have been revealed using X-rays.
我们用X射线研究保存在化石中的色素，包括一只1200万年前的鸟类。
Besides acting as pigments, carotenoids are antioxidants that have an important role in protecting DNA from harm.
除了起色素作用外，类胡萝卜素还是抗氧化剂，在保护DNA免受破坏中起着至关重要的作用。
When we are young, our hair is colouredby the pigments produced by cells in the hair follicle known as melanocytes.
年轻时，我们的头发的颜色是毛囊里的黑素细胞产生的色素造成的。
It's not that hard to match color pigments, but duplicating the tiny holes and bumps would be really difficult.
因为，配色对造假者而言也许并不困难，但要想复制出这些小孔和撞击就十分困难了！
It's not that hard to match color pigments, but duplicating the tiny holes and bumps would be really difficult.
因为，配色对造假者而言也许并不困难，但要想复制出这些小孔和撞击就十分困难了！
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