pgnin是什么意思音标:英 ['lɪgnɪn]美 ['lɪgnɪn]
n. 木质素
[化] 木质素; 木素
n. a complex polymer; the chief constituent of wood other than carbohydrates; binds to cellulose fibers to harden and strengthen cell walls of plants
pgnin的用法和例句：
1.If you go to page three, you'll see that we began with a naturally occurring bioorganic compound that's heavily comprised of pgnin and chlorophyll.
请翻到第三页 我们从一种 自然生成的生物有机化合物入手 该物质的主要构成是木质素和叶绿素