The Romans used natural pigments on their fabrics and walls.
罗马人使用天然颜料染布和刷墙。
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。
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。
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。
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。
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。
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。
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。
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。
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。
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。
A tattoo is a permanent mark or design made on your skin with pigments inserted through pricks into the skin's top layer.
纹身其实就是用带有颜料的针刺工具在皮肤的表皮层留下的永久记号或图案。
Roses appear naturally in many shades of red, pink, yellow and white, but lack the natural ability to produce blue pigments.
天然的玫瑰有很多颜色，比如红色、粉色、黄色和白色，但是就是缺少生成蓝色素的能力。
But it's not pigments that create those eye-catching shades. It's microscopic structures on the insects' wings that reflect the light.
然而这些耀眼的颜色并不是色素造成的，而是由它们翅膀上的微小结构反光而成。
Their study, published in the journal Science, revealed the chemical fingerprint of pigments that once tinted the ancient bird's feathers.
他们发表在《科学》杂志上的研究成果，建立了曾经存在于古代鸟类羽毛中的色素的化学指纹图谱。
MIT's Angela Belcher took her cue from plants, where special pigments capture solar energy in photosynthesis, involving the splitting of water.
它的发现者是麻省理工大学的安吉拉·贝尔彻，她的灵感来自于植物，因为植物中的特殊色素在光合作用中能吸收太阳能，并分解水。
In some cases - such as when a person with permanent eyeliner has an MRI of the eye - tattoo pigments may interfere with the quality of the image.
在一些案例中，当纹过眼线的患者在做眼部的MRI时，纹眼线的颜料可能会干扰最后的成像效果。
M.I.T. 's Angela Belcher took her cue from plants, where special pigments capture solar energy in photosynthesis, involving the splitting of water.
它的发现者是麻省理工大学的安吉拉·贝尔彻，她的灵感来自于植物，因为植物中的特殊色素在光合作用中能吸收太阳能，并分解水。
M.I.T. 's Angela Belcher took her cue from plants, where special pigments capture solar energy in photosynthesis, involving the splitting of water.
它的发现者是麻省理工大学的安吉拉·贝尔彻，她的灵感来自于植物，因为植物中的特殊色素在光合作用中能吸收太阳能，并分解水。
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