Polyphenol substances

• 多酚类物质

Polyphenol substances的用法和样例：

例句

1. The aging phenomenon coincided with oxygen absorption and was retarded by phenolic substances.
   老化现象与氧化吸收密切相关，酚类化合物可以阻缓老化。
2. In this paper,a imidazole-salt was synthsised and was used with a polyphenol compound to modify the dicyandiamide curing epoxy resin system.
   本文针对双氰胺固化环氧树脂时的固化温度高，固化产物耐湿热性差的缺点，利用自行合成的咪唑盐和多羟基酚类化合物，对双氰胺固化体系进行了改进。