coupling efficiency的用法和樣例：
例句
- Without the misalignment, coupling efficiency increases with the decreasing of taper length.
失配不存在時，耦合效率隨著錐長的增加而減小。 - The phase holograms are expected to be able to guide the emission straight out from the OLED device and hence the external light coupling efficiency can be improved.
這種相位全像術可以預期將發射出來的光直線導出有機發光二極體元件因此可以改善外部發光耦合效率。
