1.Yet that alone is not enough for transparency. Cartilage has no melanins or blood supply and is colorless, but it is at best translucent.
不过单是如此还不足以达成透明，就像软骨，既没有黑色素亦无血液供应，同时也没有颜色，但它顶多只是半透明。
2.Non-enzymatic browning results from caramelization and the Maillard reaction to produce melanins .
非酶棕色着色剂形成于焦糖形成过程以及梅拉德反应中产生的黑色素。
3.Scanning electron microscopy (SEM) is used to examine the structure of natural and synthetic melanins.
扫描电子显微镜（SEM）是用来检查结构的天然和合成黑色素。