“紫羅酮”造句
2024年05月01日 23:06:56
葉黃素是含
紫羅酮環(huán)的二 羥基 類胡蘿卜素,在自然界廣泛存在.
Lutein is dihydroxy - carotenoids with the ionone ring systems distributed widely in nature.
葉黃素和玉米黃質(zhì)是含
紫羅酮環(huán)的二 羥基 類胡蘿卜素,在自然界廣泛存在.
Lutein and zeaxanthin are both dihydroxy - carotenoids with the ionone ring systems distributed widely in nature.
改進了由山蒼子油合成
紫羅酮的方法.
A method on synthesis of ionone from litsea cubeba oil had been developed.