pencil-beam antenna

例句：

1. 1. The new satellite has a pencil-beam antenna that can detect signals from faraway places.
   新卫星配备了一根铅笔形天线，可以探测到远处的信号。
2. 2. The engineer designed the antenna to be as thin as possible while maintaining its ability to receive signals.
   工程师设计天线时尽量使其尽可能薄，同时保持接收信号的能力。
3. 3. The pencil-beam antenna was used to transmit data over long distances without interference.
   铅笔形天线被用来在长距离内传输数据，而不受干扰。