The whistle reproduced the 2600 hertz tone necessary to authorize a call.
口哨再生了是必需授权与一个呼叫的2600赫明暗。

Humans can hear frequencies as high as 20,000 hertz and as low as 20 hertz.
人类可以听到频率高达2万赫兹和低到20赫兹的声音。

I have here a tuning fork which generates4,000 hertz, a very high frequency.
这个音叉，产生4000的赫兹，一个很高的频率。

I have here a tuning fork which generates4, 000 hertz, a very high frequency.
这个音叉, 产生4000得赫兹, 一个很高得频率。

When visiting Germany this,fajieyefu still visited A to help hertz engine mill.
此次访问德国时，法杰耶夫还参观了阿拉赫机车制造厂。

Last but not least are frequencies around a billionth of a billionth of a Hertz.
最后一个频率范围是在几十亿分之一得几十亿之一赫兹。

Hertz's experimental researches on the cathode rays and his important influence.
赫兹对阴极射线的实验研究及其重要影响

The difference, expressed in Hertz, between the two limiting frequencies of a band.
一个频带的上下界频率之差, 单位用赫兹表示。

Heinrich Rudolf Hertz proves that electricity is transmitted at the speed of light.
海因里希。鲁道夫。赫兹证实电是以光速传播得。

Cycle determines the unit of frequency, such as cycles per second, Hertz, Hz, or cyclessecond.
周期确定单位的频率, 如赫兹, 赫兹的频率, 或周期秒。

In Oceanside, there is the small Hertz Yard for Chemical Trains to the Oceanside Chemical Plant.
在欧辛塞德，有小赫兹场化学列车的欧辛塞德化工厂。

Normally demodulation frequency is inside the limits that a few hertz this to hundreds of megahertz.
凡是解调频率都在几兆赫兹至几百兆赫兹的规模内。

Hertz pulls Sohu of Weir general 2009 every gain anticipate reduce from 5.68 dollars to 3.85 dollars.
赫拉威尔将搜狐2009年每股盈利预期从5。68美元下调至3。85美元。

The frequency response of radiation pattern of a linear dipole antenna by Hertz dipoles field summation approximation.
计算偶极天线之辐射场型随频率之变化。