optical add drop multiplexer

例句：

1. 1. The optical adddrop multiplexer is used to combine and separate signals on a single fiber.
   光学添加丢弃多路复用器用于在同一光纤上结合和分离信号。
2. 2.The optical add drop multiplexer was designed to improve the efficiency of data transmission.
   光学添加丢弃多路复用器被设计来提高数据传输的效率。
3. 3. The optical add drop multiplexer has become an essential component in modern telecommunications systems.
   光学添加丢弃多路复用器已成为现代电信系统中不可或缺的组成部分。