propagation law的用法和样例：
例句
- The radar operators had to be eternally observant, and also skilled in the vagaries of radar sets, propagation conditions, and enemy tactics.
雷达操作员必须非常机警，同时又必须熟悉雷达的古怪脾气，电波传播规律以及敌人的战术。 - The light wave propagation in quasiperiodic one-dimensional photonic crystals with the doped defect and the substitutional defect is studied by means of the transfer-matrix method.
利用传输矩阵方法，研究了光波在包含掺杂缺陷和替代缺陷的厚度渐变准周期结构一维光子晶体中的传播规律。
