leakage spot displacement

• 光点的电位移

leakage spot displacement的用法和样例：

例句

1. The paper is to prove the refraction on two kinds of medium interfaces of electric displacement line using the boundary condition of the electric field and Fermat Principle.
   利用电场边界条件和费马原理证明电位移线在两种介质界面上的折射。