radio signal interceptor

例句：

1. 1. The military uses radio signalsinterceptors to track enemy movements.
   军队使用无线电信号截获器来追踪敌军行动。
2. 2.The spy used a radio signal interceptorto eavesdrop on the conversation.
   间谍使用无线电信号截获器窃听对话。
3. 3.The police department has developed a new radiosignal interceptor that can detect and blockforeign interference.
   警察局开发了一种新型无线电信号截获器，能够检测并阻断外来干扰。