中文翻译与英英解释

【无线电】高频(率)，高周率〔略作 H.F.〕。

high:    adj. 1.高的〔指物，形容人的身高用 tall〕；高 ...

frequency:    n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...

a pitch that is perceived as above other pitches
同义词：high pitch,

3 to 30 megahertz
同义词：HF,

High frequency (HF) radio frequencies are between 3 and 30 MHz. Also known as the decameter band or decameter wave as the wavelengths range from one to ten decameters (ten to one hundred metres).

例句与用法

The high frequencies are attenuated .
高频成分被削减。

The waveform is onticeably less rich in the higher frequency .
这样的合成波形明显地缺乏较高的那一频率。

The high frequencies are not emitted, the effect of frequency-selective propagation is not very apparent .
没有激发高频，频选传播不很明显。

High frequency gusts are usually measured by high response research-oriented anemometers .
高频突风通常是用高速响应的研究性定向风速计测量。

The time harmonics can be considered as voltages of higher frequencies applied to the windings .
时间谐波可以看作是施加在绕组上的较高频率的电压。

High frequency instabilities result in grossly increased convective heat transfer coefficients in the chamber walls .
高频不稳定性使室壁对流传热系数大大增加。

This high frequency alternating current produces the high frequency radio waves mentioned in the previous chapter .
这种高频交流电流产生前一章提到过的高频无线电波。

There is an onset of high frequency motion which is common to both components about 1. 8 sec. after the beginning of the record .
大约在记录开始18秒后，两种分量都有高频运动出现。

High frequency gust data do not exist in large quantities and are generally available only from the original investigator .
高频突风数据不是大量的存在，一般只是在最初型的研究器上用。

These stray currents usually have a higher frequency (50-60h2 harmonics) than those used in the ip frequency technique .
这些游散电流的频率（5060H2及其谐波）通常比IP频率域法中用的频率要高。