为被告爱米尔·哈恩准备了扩音器.

A microphone will be placed in front of the defendant Emil Hahn.

这种熊其实是一个枕头，不过装有内置的扩音器。

The bear is used as a pillow, but has a built-in microphone.

内置的立体声麦克风和扩音器，能帮你在摄制影像的时候，耳听八方。

There’s a built-in stereo microphone for use with your video, plus a mike jack.

每段录音都有一系列的押韵字词，志愿者要在不同程度的背景噪音下佩戴与不佩戴该智能扩音器来辨别这些词。

Each recording had a series of rhyming words that the volunteers had to identify, with and without the intelligent microphone, for different levels of background noise.

相反，他和他的人一直在用搜救犬，扩音器，微型摄像机营救幸存者，以及定位仍然活着的人。

Instead, he and his men have been using trained rescue dogs, microphones, miniature cameras, and reports from survivors to try to locate people still alive.

通知是通过扩音器发布的。

The announcement was made through the loudspeaker.

音乐会上的扩音器非常强大。

The loudspeaker at the concert was incredibly powerful.

老师使用扩音器向全校讲话。

The teacher used a loudspeaker to address the entire school.

他调整了扩音器以获得更好的音质。

He adjusted the loudspeaker to get better sound quality.

警告者用扩音器引起了大家的注意。

The warner used a loudspeaker to get everyone's attention.