electromagnetic field equation

例句：

1. 1. The equation describes how the electric and magnetic fields interact with each other.
   这个方程描述了电场和磁场如何相互作用。
2. 2. In this model, the electromagnetic field equations are used to calculate the behavior of charged particles.
   在这个模型中，电磁场方程被用来计算带电粒子的行为。
3. 3. The study of electromagnetic fields is crucial for understanding the behavior of light and electricity.
   研究电磁场对于理解光和电的行为至关重要。