content of nicotine

• 烟碱含量

content of nicotine的用法和样例：

例句

1. The content of nornicotine is higher after flue-curing than before flue-curing.
   湿度对烟碱含量影响无明显的规律性。
2. The color-reaction of nicotine with methyl orange was studied,and the satisfying result was obtained by applying it to determinate nicotine in smoke directly.
   研究了甲基橙与烟碱的显色反应，并将其应用于直接测定烟气中的烟碱含量，获得较为满意效果。