frequency，rate ；

[例句] 实验者已经成功控制了心跳的速度和频率。 Experimenters have succeeded in controlling the rate and regularity of the heartbeat.

[例句] 欧洲的交流电输出频率通常为50赫兹。 In Europe, AC is usually generated at 50 Hz.

frequency modulation (FM)，frequency adjustment ；

[例句] 这里是调频立体声103.7。 This is FM stereo one oh three point seven.

[例句] 音乐调频按钮设在您座位的扶手上. The button for the music channel is in the arm of your seat.

frequency channel，channel ；

[例句] 这部连续剧每周五晚上10点30分在第4频道播出。 The series goes out at 10.30pm, Fridays, on Channel 4.

[例句] 一台小彩色电视机频道调在了一出下午的肥皂剧上。 A small colour television was tuned to an afternoon soap opera.

intermediate frequency，medium frequency，midfrequency，resting frequency （频率调制时） ；

[例句] 中频不稳定性的研究经历了极为曲折的道路. Intermediate frequency instability has had the most uneven history.

[例句] 在模拟系统中通常是由中频信号的失真所引起. Typically caused by mid frequency distortions in an analog system.

[物] [电] audio frequency，VF (voice frequency)，audio-，frequency ；

[例句] 数字音频广播是21世纪的无线电广播系统。 DAB is the radio system of the 21st Century.

[例句] 它的频率响应在整个音频范围内有所下降. Its frequency response has to be flat over the whole audio range.

ultrahigh frequency (UHF)，superhigh frequency (SHF)，superfrequency，extrahigh frequency，UHF ；

[例句] 这些超高频能传送均衡的宽频信号. These extremely high frequencies allow proportionately wider band - width signals to be transmitted.

[例句] 用途: 用于超高频频率转换, 负载振荡器, 宽频放大. Purpose: UHF frequency converter, local oscillator, wide band amplifier.

fundamental frequency，base frequency，fundamental ；

[例句] 硝酸离子有四个基频形式. The nitrate ion has four fundamental modes of vibration.

[例句] 对于基频振动来说, B ′-B″ 很小,因此谱线是几乎等距离的. For the fundamentals , B'- B " is very small and therefore the lines are almost equidistant.

frequently，often ；

[例句] 婴儿要是渴了，就会吃得更频繁。 If a baby is thirsty, it feeds more often.

[例句] 干性头发洗得太频繁容易受损。 Dry hair can be damaged by washing it too frequently.

frequency；

[例句] 国际化学奥林匹克 ( IChO ) 竞赛中微型化学实验出现频数增多. Recently, in International Chemical Olympiad ( IChO ) competition microscale chemical experiment appears frequently.

[例句] 统计描述用百分数、均数 、 标准差 、 频数 、 Pearson相关系数. The statistical description includes percentages , means , standard deviations, frequency, and Pearson's r.

[书] frequent，repeated ；

[例句] 中东这一地区一直战乱频仍。 The Middle East has often been a theatre of war.

[例句] 机器常裸露着，因此事故频仍。 Machinery was often unprotected and accidents were frequent.

[计] LF ；

[例句] 同步 低频 整流器与推挽整流器相似. The synchronized low - frequency rectifier is similar to a push - pull rectifier.

[例句] 在低频燃烧响应的试验测定方面只做了很少的工作. Very little effort has been devoted to the experimental measurement of low frequency combustion response.

[计] AU，audio frequency ；

[例句] 热试结果表明,振荡激波的频率与声频相近. Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.

[例句] 本发明揭示一种用于声频编码之方法及装置. A method and a device for audio coding are disclosed.

ultralow frequency (ULF) ；

[例句] 研制一种新型超低频垂直隔振系统. A novel ultra - low frequency vibration isolator is established.

[例句] 控制电源输入, 实现了超低频电缆试验装置的输出幅值从0～30kV可调. By controlling input of power, the output from 0 ~ 30 kV of sinusoidal can be adjusted.

mixing ；

[例句] 对于四波混频的研究主要是采用简并四波混频和非简并四波混频方法. The main method in searching four - wave mixing adopts DFWM and NDFWM.

[例句] 描述: 惠普安捷伦5364A是一种用于微波混频器检测器. Description: The HP Agilent 5364 A is a used Microwave Mixer Detector.

[计] cymometer，[化] frequency meter ；

[例句] 频率计不好用了, 需要更换. The frequency meter is not in effectiveness, to be renewed.

[例句] 数字频率计是一种基本的测量仪器. Measurement of time - frequency electronic measurement is an important area.

pollakiuria，micturition ；

[例句] 尿频, 尿急, 尿不尽是什么症状? Frequent micturition, make water is urgent, what symptom is make water?

[例句] 病人必须用力才能排尿,且有频尿现象. Patients must strain to pass urine and they urinate frequently.

frequent，hourly，often，continual ；

[例句] 频繁的批评足以使任何人意志消沉。 Constant criticism is enough to demoralize anybody.

[例句] 频繁的使用需要记忆,也促进了记忆. Their frequency of use both justifies and requires the memorization.

continually，hourly ；

[例句] 一辆区间公交车频繁地往返于这家旅馆和那个乡村俱乐部。 A shuttle bus runs frequently between the Inn and the Country Club.

[例句] 我们频繁地提到了他的观点。 We have referred freely to his ideas.

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[例句] 她的脚虽然长得小巧, 却只会频频地放在地上. The feet, though small, were set flatly.

[例句] 有钱的叔叔频频地送礼物给孩子们. Their rich uncle rained ( down ) gifts upon the children.

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[例句] 如此高频率的声波是无法听到的。 You can't hear waves of such a high frequency.

[例句] 频率的主函数包括主动力传递函数. The frequency response function includes an aerodynamic transfer function.