lutein例句
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 - carotenoids with the ionone ring systems distributed widely in nature.
叶黄素是含紫罗酮环的二 羟基 类胡萝卜素,在自然界广泛存在.