这些放大器是一种复杂敌我识别系统(iff)的重要组成部分，专门用来问讯飞机，以确定他们是敌是友。

These amplifiers are key components in a complex Identification friend or foe (IFF) system used to interrogate aircraft to determine their friend or foe status.

youdao

我只花了近两个月听取语音识别发射本人独家乙综合放大器。

I just spent the last two months listening to the ASR Emitter I Exclusive B integrated amp.

youdao