7. You may be hearing our broadcast on what is called short wave. These are frequencies between three thousand and thirty thousand kilohertz. They are often called megahertz.
8. Its bandwidth of 428 kilohertz means a single segment can carry a bare-bones video picture, compact disc-quality audio, and text for news flashes, weather details and emergency announcements.
9. While performing the seismic modelling experiment, it needs to have tens to hundreds of kilohertz and well-distributed orientation-dependent narrow pulse acoustic wave as simulation source.
在地震模型实验中,需要获得几十至几百千赫的、方向性较均匀的窄脉冲声波作为模拟震源。
来自互联网
10. The bats can also "sweep through a frequency range of up to 170 kilohertz, " moving from lower to higher notes, "while a human singer produces a glissando through less than 2 kilohertz at most."
蝙蝠音频频率范围也可以高达170千赫,是=由从低频逐渐到高频。
来自互联网
11. The bats can also "sweep through a frequency range of up to 170 kilohertz, " moving from lower to higher notes, "while a human singer produces a glissando through less than 2 kilohertz at most."