Hammett equation

例句：

1. 1. The Hammett equation is used to predict the chemical reactivity of molecules.
   哈密特方程用于预测分子的化学活性。
2. 2. In optimization problems, the Hammett equation is often used to calculate the minimum cost path.
   在优化问题中，哈密特方程常被用来计算最小成本路径。
3. 3. The Hammett equation has been successfully applied to the analysis of complex chemical systems.
   哈密特方程已被成功应用于复杂化学系统的分析。