nonlinear chelatropic reaction

例句：

1. 1. The model is nonlinear, meaning it doesn't follow astraight line.
   这个模型是非线性的，意味着它不遵循一条直线。
2. 2. The datashows that the relationship between variables is nonlinear.
   数据显示变量之间的关系是非直线形的。
3. 3. Nonlinear models are often used in physics to describe phenomena that cannot be explainedby linear equations.
   非线性模型常用于物理学中，用来描述不能用线性方程解释的现象。