I will arrange for medical advice on frequency 2182.5 khz.

我将安排频率2187。5KHZ进行医药咨询。

The trailing aerial which allowed them to request bearings on 500 kHz from ground stations was removed.

飞机的垂下天线被拆除，这条天线原用于在离地面 500 kHz 的高空请求方位。

And even if my tiny lungs could move enough air for an audible sound wave, my itty bitty vocal cords must be ringing at 20 kHz or higher.

即使我的迷你肺可以移动足够的空气，产生听得见的声波，我细小的声带一定是在20 kHz 或更高的频率震动。

And we played sound at a little strand of spider silk and found that when the silk is very thin, it moves with the air in a sound field amazingly well over a wide range of frequencies, from 1 hz to 50 khz.

我们在一根细小的蛛丝上播放声音，发现当蛛丝很薄时，它会与声场中的空气一起运动，频率范围很广，从1赫兹到50千赫。