unidirectional coupler

例句：

1. 1.The unidirectional coupler is used to connect two wires together without any crossover.
   单向连接器用于将两条线连接在一起，无需交叉。
2. 2. The unidirectional coupler was designed to improve the signal transmission efficiency.
   单向连接器被设计用来提高信号传输效率。
3. 3.The unidirectional coupler is a crucial component in many electrical systems.
   单向连接器是许多电气系统中的关键组件。