声波频率单位，来自其发现者19世纪德国物理学家Heinrich Hertz.

1. There are Hertz, avis , Budget, National and several other small companies.

有Hertz, avis, Budget, National及其他几个公司.

2. Frequency is measured in hertz, or cycles per second.

频率用赫兹即每秒钟的周数来计算.

3. Rate of signal oscillation in hertz.

信号振荡的速率,以赫兹(Hz) 为单位.

4. A unit of frequency equal to one billion ( 109 ) hertz.

十亿赫兹频率单位等于十亿 ( 109 )

5. Analogue bandwidth is measured in Hertz Hz, cycles per second.

类比式频宽以赫兹测量每秒的传送周期.