At all angles less than the critical Angle, both reflection and refraction occur.
对于所有小于临界角的入射角，则既发生反射，又发生折射。
2
In this paper, the effects of critical electron density of plasma and the plasma frequency of electron on the refraction, absorption and reflection of the electromagnetic wave are studied.
着重研究了等离子体临界电子密度、电子等离子体频率等参数对电磁波的折射、吸收、反射的影响。
3
A shock polar theory is employed to analyze critical angles of transition from regular refraction to irregular refraction.