external coupling的用法和樣例：
例句
- The expansion-side of the heat-pump is thermally coupled to the heat-source, which is often the external environment.
擴展方面的熱泵熱耦合的熱源，這往往是外部環(huán)境。 - 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(shù)可以預期將發(fā)射出來(lái)的光直線(xiàn)導出有機發(fā)光二極體元件因此可以改善外部發(fā)光耦合效率。
