千周的英文：
kilohertz
kHz

The stress waves in elastic media have a frequency above 20 kilohertz.
弹性介质中的应力波，其频率在2万赫以上。

Echolocation calls are ultrasonic ranging in frequency from 20 to 200 kilohertz.
用于回声定位的叫声是20－200千赫之间的超声波

Commercial AM stations operate in the frequency range of 535 to 1605 kHz.
商业调幅之声的运作频率范围为535千赫(kHz)到1605千赫。

9 kHz～30 MHz Performance levels and methods of measurement of magnetic and electric field strength from electric vehicles,broadband,9 kHz to 30 MHz
电动车辆的电磁场辐射强度的限值和测量方法宽带

CHANNEL button. Pressing these buttons will step up or down to the next 10KHz channel in the currently selected band segment.
信道按钮,在当前选择频带段按下这些按钮将上升或下降到下一个10KHz信道。