1. angle of refraction：angle of reflection 反射角 | angle of refraction 折射角 | angle of repose 休止角
2. refracted angle：折射角 angle of refraction | 折射角 refracted angle | 折射角 angle of refraction
3. refracting angle：refracted wave 折射波 | refracting angle 折射角 | refracting edge 折射边
4. refraction angle：refracting telescope 折射望远镜 | refraction angle 折射角 | refraction correction 折射校正