very-narrow-beam receiver

例句：

1. 1. Thisvery narrow beam receiver can detect the weakest signals from far away.
   这个非常狭窄的光束接收器可以探测到远处最微弱的信号。
2. 2. The engineer used a very narrow beam receiver to locate the fault in the power line.
   工程师使用一个非常狭窄的光束接收器来定位电力线上的故障。
3. 3.In the dark room, the very narrow beam receiver was the only source of light.
   在黑暗的房间中，非常狭窄的光束接收器是唯一的光源。