All K atoms coordinate with o atoms of phenolic hydroxyl group and nitro-group simultaneously.
所有的K离子均同时与酚羟基和硝基的氧原子配位。
When we acylated the 4'-phenolic hydroxyl group in the molecular structure of puerarin, the derivatives'physico-chemical properties had some changes.
在理化性质测定方面，将葛根素分子结构中的4’-酚羟基进行酰化后其理化性质发生了一定的变化。
The thermodynamic parameters of carboxylic group and titrable phenolic hydroxyl group of humic acid are similar to that of simple hydroxy-benzoic acid.
腐植酸的羧基和可滴定的酚羟基在热力学性质上同简单的羟基苯羧酸相似。
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