Since keratin absorbs water, a thick keratin layer looks white when it's wet.

于质吸水，湿润的厚质层看起来是色的。

All hair is made of the protein keratin.

所有毛发都构成。

Increased keratin production is another one.

另一个是增多。

At the cellular level, leukoplakia typically shows a thickened keratin layer.

从细胞学层面看，口腔黏膜斑的典型表现是增厚的质层。

Some whales build up waxes, along with lipids and keratin protein into what's called earplugs.

有的鲸会产生鲸蜡、油脂和，组成被称为“耳塞”的东西。

It can also break down skin cells and keratin to help unclog the pores.

它可以分解皮肤细胞和以保证毛孔畅通。

The scales are made of keratin, the same stuff as human hair and fingernails.

鳞片是组成的，和人类的头发和指甲是一样的东西。

But Bajadasaurus spine's made of the same keratin material as our horned animals of today.

但是巴雅达龙的脊椎和我们今天的化动物是同样的制成的。

The scales are made of keratin, which is the same ingredient that's in our nails.

这种鳞片是组成, 和我们的指甲是相同的成分。

The cutting edge is sheathed in keratin, the same substance that forms a cat's claw.

锋利端表面覆盖质层，猫科动物的爪子也是同种物质构成。

When these cells move upwards, they're filled with a hardened protein called keratin.

细胞在向上移动过程中，会被填充一种硬化的质，叫做。

Many beauty products include honey, beeswax and keratin which is the protein found in animal cells.

许多美容产品包括蜂蜜，蜂蜡和都是如此，是在动物细胞中发现的质。

Hair is made of keratin, the same protein that forms your fingernails… with a few extra ingredients.

头发是构成的，也是是构成指甲的质… 再含有一些额外的成分。

These large protective scales are made of keratin, the same thing human nails and hair are made from.

这些巨大的保护鳞是制成的，成分就像人类的指甲和头发。

And to make matters worse, that body amour was covered in a protective sheath of keratin.

雪上加霜的是，那个体甲上覆盖着保护性的质鞘。

The heat weakens or breaks a protein called keratin, responsible for the hair's shape, and temporarily changes it.

而这种设备产生的热量会削弱或者破坏一种负责头发形状名为朊的质，而且短期内对它进行改变。

They're made of a material called keratin, the same stuff that your hair and nails are made of.

它们是一种叫做的组成的，与你的头发和指甲组成成分相同。

Horse hooves are made of lots of thick layers of keratin put together that make them strong.

马蹄是很多厚厚的层拼接而成的，这使得它们非常坚固。

The rattle consists of hollow, interlocked segments made of keratin, the same substance that makes our nails and hair.

响环是制成的中空部分交错组成，与我们的指甲和头发是一样的物质。

But us humans only have a very thin layer of keratin on our fingers and toes.

但我们人类的手指和脚趾上只有很薄的一层。