The frequency associated with the first mode is sometimes called the fundamental frequency.
和第一振模相联系的频率有时叫做基频。
Research on the Transfer Technique of Low Frequency Power with a High Frequency Transformer
高频变压器传递低频电功率的研究
CATHETER ABLATION OF THE ATRIOVENTRICULAR CONDUCTION SYSTEM BY HIGH FREQUENCY EHERGY IN DOGS
高频电能消蚀房室传导系的实验研究
Design and Realization on the Low Frequency Band Pass Filter with Center Frequency Adjustment
中心频率可调节的低频带通滤波器设计与实现
Frequency combs have dramatically simplified and improved the accuracy of frequency metrology.
频率梳显著简化了频率测量并大大提高了测量得准确度。
The effect of radio frequency catheter ablation to fibrinolysis and the influence of Valsartan.
射频消融对纤溶系统的影响及缬沙坦的干预作用。
Validation of frequency characteristic of capacitance standard in the extending frequency range
电容标准扩展频段频响的核验
In this paper, a solution to fractional frequency dividing frequency synthesizer is introduced.
文中介绍了一种小数分频频率合成器的设计方案。
Hot firings show that the frequency of the oscillating shock is close to the acoustic frequency.
热试结果表明，振荡激波的频率与声频相近。
This setting controls the width of a single frequency bin in the frequency response measurement.
这种设置在录放频幅响应测量中控制单一频率得带宽。
Improve compatible analysis and test of frequency usage so as to prevent frequency interference.
加强频率使用的兼容分析和测试，避免干扰。
The calculation in frequency domain includes Root Locii, Frequency Response and Spectra Analysis.
频域内的计算有根轨迹分析、频响分析和谱分析。
High Frequency Audiometry and Its Significance in Patients With Normal Hearing in Speech Frequency
高频测听在语频听力正常的耳鸣患者中的应用及其意义
An Approach to the Frequency Standard Comparison Based on the Equivalent Phase Comparison Frequency
基于等效鉴相频率的频标比对途径
A rational use of double coefficient on frequency standard deviation of frequency standard comparator
频标比对器频差倍增系数的合理取用
An error of the formula of phase frequency response in frequency response approach and its correction
频率响应法中相频特性计算式的错误与修正
Confirmation of the Equivalent Frequency in Designing the Noise Abatement of Passenger Dedicated Lines
客运专线声屏障设计中等效频率的确定
A Study About Absolute Auditory Discrimination at Different Frequency Level and Different Loudness Level
不同频率和响度声音的听觉判断绩效研究
Frequency measurement of vibrating wire sensors using the method of equally accurate measuring frequency
用等精度测频方法实现振弦式传感器频率测量
Longer vocal folds would vibrate at lower frequency, but tenser folds would vibrate at higher frequency.
声带加长会降低振动频率，声带拉紧则可以增加振动频率。
Laparoscopy guided radio frequency ablation in treatment of the myoma of uterus clinical study of 46 cases
腹腔镜下射频消融治疗子宫肌瘤46例临床观察
The appearance of flicker can occur if the frame frequency is close to the frequency of fluorescent lights.
闪烁的出现能发生如果框架频率接近于萤光的频率灯。
Comparison of Two Variances in the Long Time Frequency Stability Measurement of Rb Atomic Frequency Standard
两种方差在铷原子频标长稳测量中的比较分析
The multiple degrees of freedom waveguide vibration suppressor has the capacity to absorb low frequency sound.
多自由度波导抑振器具有吸收低频入射声波的功能。
The results show that it has better term frequency stability and frequency drift performance with temperature.
试验表明，它具有良好得短期频率稳定度和温漂特性。
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