derivative discontinuity

例句：

1. 1. The chemical reaction is a process of deriving energy from the reactants.
   化学反应是一个从反应物中获取能量的过程。
2. 2. Derivatives are used to describe the properties of substances that are formed by combining other substances.
   衍生物用于描述由其他物质结合形成的物质的性质。
3. 3. The company's stock price has been influenced by its derivatives trading activities.
   该公司的股票价格受到其衍生品交易活动的影响。