Optical fibre / light guide的用法和樣例：
例句
- Optical fibers have replaced small electric lights in some medical instruments.
光學(xué)纖維已經(jīng)代替了某些醫療器械中的小電燈。 - For the armed forces, light weight optical fibers are replacing some of the heavier metal wiring in military airplanes.
在軍隊里則用輕的光學(xué)纖維去代替軍用飛機上的某些笨重的金屬接線(xiàn)。
