Lutein is mainly found at the eye's retina and macular.叶黄素主要存在于视网膜及黄斑部.Lutein is a kind of natural pigment, extracted scientifically from natural marigold.叶黄素是以万寿菊花为原料, 采用科学方法提取精制而成的天然色素.Lutein is dihydroxy - carote...
The process of anodizing lnvolves the deposition of further oxide on the surface.阳极电镀的工序就是在表面进一步附着氧化层.The Technology is also applies to the anodizing of common pure aluminium.该法也适用于一般纯铝的阳极氧化.The anodizing of ZL 102 alumi...