nitration benzol

例句：

1. 1. The process of nitration is a crucial step in the production of nitric acid.
   硝化过程是生产硝酸酸的关键步骤。
2. 2. The nitration of the soil has been shown to improve crop yields.
   土壤的硝化已被证明可以提高作物产量。
3. 3. Nitration is a chemical reaction that occurs when nitrogen compounds are exposed to oxygen.
   硝化是一种化学反应，当氮化合物暴露在氧气中时会发生。