如何使用 "keratin" 造句

1. The second was that the melanosomes in her feathers were always embedded in the keratin of which the feather is made .
第二点是,羽毛中的黑素体总是镶嵌在组成羽毛的角蛋白中。
2. Composed of keratin , lipids and the pigments that give them their beautiful brilliant colors , feathers are particularly fascinating given the amazing work that they do .
羽毛中包含有角质,油脂以及为它们带来斑斓色彩的色素,羽毛所起到的作用让人惊叹。
3. Your eyes need to be transparent , however ; they can 't be covered by a layer of dead cells and keratin .
然而,眼睛却需要透明的保护层;在眼睛表面不能覆盖有死细胞或者角蛋白。
4. Nails , on both the fingers and the toes , are made of keratin , the same stuff our hair contains , only denser and harder .
手指甲与脚指甲,都是由角蛋白组成,这也是我们头发的主要组成部分,只不过较之更密实更坚硬。
5. Most of your body is protected by skin of course , and your outer layer of skin is made of dead cells and keratin , an opaque , protective substance .
当然你身体的大部分是由皮肤来保护,皮肤外层是由死细胞和角蛋白(即一种不透明的防护物质)组成。