light-focusing plastic fibre

例句：

1. 1.The new light-focusing plastic fibre is more efficient than the old one.
   这种新型的聚光塑料纤维比旧的更有效。
2. 2.The engineer used the light-focusing plastic fibre to make a transparent window.
   工程师使用聚光塑料纤维制作了一个透明的窗户。
3. 3.The light-focusing plastic fibre can be used in many applications, such as insulation and soundproofing.
   聚光塑料纤维可以用于许多应用，如绝缘和隔音。