extraneous constituents

• 杂质

extraneous constituents的用法和样例：

例句

1. The results show that the glucose and extraneous chemicals in the corncob hydrolysate have found to have suppression inhibitory effects to the xylitol fermentation.
   结果表明玉米芯水解液中的葡萄糖和杂质成分对木糖醇发酵具有抑制作用。