Their instruments detected very faint radiowaves at a frequency of 3 kilohertz.

他们的仪器检测到一个3千赫的微弱无线电波。

柯林斯高阶英语词典

They sat aside 100 channels, each 200 kilohertz wide.

他们在旁边坐了100种渠道, 各200千赫宽.

期刊摘选

Their instruments detected very faint radiowaves at a frequency of 3 kilohertz.

他们的仪器检测到一个3千赫的微弱无线电波。

柯林斯例句