reflection coefficients的用法和樣例：
例句
- The reflection and transmission coefficients of the plane wave at the birefringent surface were deduced.
導出了平面波在雙折射介質表面的反射係數和透射係數公式。 - Negative coefficients occur where there is a decrease in acoustic impedance across the reflecting interface.
當反射界面上下兩側的聲波組抗降低時，反射係數就會出現負值。
