千赫

他们的仪器检测到一个3千赫的微弱无线电波。

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

电台的频率常常以千赫为单位。

Radio station frequencies are often given in terms of kilohertz .

商业调幅电台的运作频率范围为535千赫（kHz）到1605千赫。

Commercial AM stations operate in the frequency range of 535 to 1605 kHz .

我们的代码的基本方法是检查在4千赫率ADC的输入。

The Basic algorithm of our code was to check the ADC input at a rate of4 KHz .

信噪比在50千赫带宽时约为22dB。

The signal to noise ratio obtained was 22 dB at the bandwidth of 50 kHz .

极尖利的10千赫音。

A ten kilohertz sound , which is very high pitched .

一些马蹄铁形蝙蝠能探测到细微至0.0001千赫的差别。

Some horseshoe bats can detect differences as slight as0.0001 khz .

2.5千赫可控硅斩波器

A 2.5 kHz SCR chopper

在水洞实验中，高速摄像机以数十赫兹至数十千赫的速度记录空化过程的系列影像，是研究水中空化现象机理的有力工具。

High speed digital camera is a powerful tool to record the cavitation phenomenon in cavitation tunnel test .

该电源采用可控硅开关，开关频率大于10千赫的开关型恒流充电电路。

SCR is used for the switch in the supply that is a switch-type char-ged circuit of continuous current .

500千赫：这是一艘国际船要求和求救频率海通信在摩尔斯电码。

500 kHz : This is an international ship calling and distress frequency for maritime communications in Morse code .

电晕放电频率的15-25千赫完成高效率能量转移作为在电子振荡之间的差距电极。

Corona discharge at frequencies of15-25 kHz accomplishes high efficiency energy transfer as electrons oscillate in the gap between the electrodes .

所以，要达到与150赫兹时同样大小的输出信号，在频率为1千赫时就需要两倍以上的电流。

So over twice the current will be required to play the same output level at1 kHz than is required at150 Hz .

谁在呼叫我？。。。正在【用。。。千赫（或兆赫）】呼叫你。

QRZ Who is calling me ? You are being called by * [ on * KHz ( or MHz ) ] .

你什么时候再呼叫我？我将在。。。点钟【用。。。千赫（或兆赫）】再呼叫你。

QRX When will you call me again ? I will call you again at * hours [ on * KHz ( or MHz ) ] .

根据第一号简正波的传播特性，分析得到了频率0.32&1.0千赫的小掠射角海底反射系数。

On the basis of analyzing the propagation properties of the first mode , the bottom-reflection coefficients at small grazing angle for frequencies 0.32-1.0 kHz were obtained .

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。

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 .

设计并研制出了工作频率为2.5千赫，输出电流从60到250安连续可调的可控硅斩波器及其栅控装置。

A 2.5 KHZ SCR chopper , with the output current controlled continuously from 60A to 250A , and its grid-control device has been designed and built .

超声波的振动频率一般高于20千赫，少数频率低于20千赫的声波的应用也包括在超声学的研究范围之内。

Generally , the ultrasonic vibration frequency is above 20 KHz , the application of few sound wave which frequency under 20 KHz is also including the research of ultrasonics .

通过改变激光器的结构、管内总气压和放电电流，在0～300千赫范围内可以观察到许多噪声现象。

A lot of noise phenomena have been observed within the range of 0-300 khz by changing the tube structure , gas pressure and discharge current of the laser . The relation between noise and moving striation is also discussed .

论文设计和开发的音频接口驱动程序支持使用I~2C接口和I~2S接口的音频编码解码器，具有支持最高48千赫的多种采样频率和配置麦克风、喇叭、耳机和耳麦的功能；

The audio interface software designed in this article supports audio Codec using I ~ 2 C interface and I ~ 2 S interface , supports multiple sampling frequency up to 48 khz and functions including configuration of microphone , speaker , and handset .

对两种含沙量（8.28千克/米~3和31.56千克/米~3）的模拟黄河水进行了在不同频率（3.2&20千赫）下的声衰减测量。

Sound attenuation measurement has been conducted for two kinds of simulated water of the Yellow River , the sand contents of which are 8 . 28 kg / m3 and 31.56kg/m3 respectively , at different frequencies in the range of 3 . 2 to 20 kHz .