这种频率属于极低频的频率范围内，通常极低频的频带范围也在300hz以下。
This falls in the extremely low frequency (ELF) range which includes frequencies up to 300 Hz.
他把低音单元按“口味”放置在鼓皮外低频比较有密度的地方—简单的移动直到你听到最自然的低频为止。
He positions the woofer to taste on the outside head in which the low frequencies are thick - simply move around until you hear the most natural low frequencies.
为促进组织修复的重要频率在生物的重要极低频所有(低频)的范围。
The important frequencies for stimulating tissue repair are all in the biologically important extremely low frequency (ELF) range.
巨大冲程的低音喇叭通常有很差的低频延伸，需要有源EQ均衡电路来获得合理的低频响应。
Related to the issue above, large excursion woofers often have poor bass extension and require active EQ to get a reasonable bass response.
纳入的高级副总裁一台15英寸的低频驱动器15pb和一个18英寸的低频驱动的高级副总裁- 18pb，在低谐振式复合木外壳。
Incorporate one 15 inch low Frequency Driver for the SVP-15PB and one 18 inch low Frequency Driver for the SVP-18PB, mounted in a low resonance composite wood enclosure.
有点凄惨的低频：SRH1840的低频表现在力度和延伸上均有所欠缺。
Bass SHY: The SRH1840's bass presentation lacks both impact and extension.
在茫茫大洋深处，唯一可用的通信手段就是甚低频或者极低频无线电。
Out in the no-mans land of the international waters are the only means of communication with the submarines to use radio in the vlf or elf range.
进行了死区补偿，使逆变器在低频输出时波形明显改善，提高了系统在低频时的转矩输出。
Because dead time is compensated at the same time, the output waveform is improved, and output torque is strengthened in low frequency.
低频振荡是一种不利于电力系统安全和稳定运行的现象，而电力系统稳定器(PSS)可以有效抑制低频振荡。
Low frequency oscillation is harmful to power system security and stability, and as one of solutions power system stabilizer (PSS) can effectively restrain such a phenomena.
矿井提升绞车在计算低频制动电压时，通常采用低频最大力矩是平均力矩1.25倍的折算系数。
We usually take the coefficient 1.25 times the average torque as the low frequency maximum torque to calculate the low frequency braking voltage.
结果表明，当相关长度增大时，相速度的过渡带向低频方向移动，衰减的弛豫峰随相关长度的增大向低频方向移动，且幅度逐渐减小。
The results show that the velocity and the relaxation peak of the attenuation moved to low frequencies, and the amplitude of the attenuation decreases, as the correlation length increases.
在变振幅的数据分析中，低频信号可以反映在低频分析结果中，也可以体现在高频信号的振幅变化中。
In the analysis of data with amplitude variation, low-frequency signals may appear as decomposed results, referred to hereafter as filtered low-frequency signals (FLSs).
方法通过对宿主图像和水印图像的小波变换，该算法把水印图像的低频成分嵌入到原始宿主图像的低频部分。
Methods Based on wavelet transform of watermark image and host image, low-frequency ingredient of watermark is embedded in low-frequency part of host image.
文章着重分析了变频器调速系统在低频区域的特性，阐述了该系统在低频区存在的一些问题，并提出相应的改善方法。
This article has mainly discussed the characteristics of the regulation system of frequency transformer in low-frequency areas and some problems and proposed some improvements.
在交流提升机的自动控制中，低频电源的设计是低频拖动控制的关键。
The design of the low-frequency power is the key factor to the control process of the mine lift.
根据局部梯度信息对源图像的小波低频系数进行选择，获取融合图像的对应低频系数。
According to local gradient information, wavelet low frequency coefficient obtained from source image is selected to compose respective low frequency coefficient of the fused image.
低频超宽带合成孔径雷达辐射定标过程中，定标体的散射特性表现为低频谐振散射特性。
During the radiometric calibration of the low frequency UWB SAR system, the scattering model of the calibrators should be regarded as the low frequency resonance scattering.
力士的T-117，非常好声的收音头，从高频到低频几乎没有缺憾，三维声场不如建伍的L-02T，而且也放弃了一些低频的浓郁度。
M- Luxman T-117 - Very good-sounding tuner. No real faults, top to bottom. Not as three-dimensional as the L-02T and gives up some bass richness.
真实，都说ie8的低频过量了，其实量感没有减少，但是却完全是另一种感觉的低频。
True, all say IE8 of low-frequency excessive, actually quantity are not decrease, but it is quite another kind of feeling of low frequency sound field, open.
本文通过对低频主动声纳的主动声纳方程的分析与声学探测过程的仿真，初步研究了低频主动声纳在不同距离上的最优探测频率问题。
With analyzing the detecting procedure of Low-frequency active sonar and emulating about it, the Optimum Detection frequency Band of Low-frequency active sonar were researched.
介绍一套基于四电极测量原理的中低频液体阻抗测量系统，采用四电极的测量探头用于电导性液体中低频阻抗谱的测量。
An impedance spectroscopy measurement system for conductive aqueous solution at medium to low frequencies is designed using the four-electrode measurement theory.
现代城市中的低频噪声已越来越引起人们的重视，低频噪声能够长距离奔袭和穿墙透壁直入人耳。
Now the low frequency noise has been paid more attention in modern city. It can run with long distance and penetrate through wall into human ears.
此方案可有效解决甚低频信号传输中的干扰问题，并为下一步的甚低频信号数字处理提供了基础。
It could overcome the transmission interference, and could be the fore part of the VLF digitized receiver.
针对采用压电元件的动态应变测量系统的低频失真问题，提出一种采用数字滤波器的低频特性补偿方案。
A digital filtering method is proposed for compensation of the low frequency characteristics of piezoelectric dynamic strain measurement system.
谷歌的VR音频系统模拟这些闭塞效应治疗高和低频率成分不同，高频区被屏蔽比低频率。
The Google VR audio system simulates these occlusion effects by treating high and low frequency components differently, with high-frequencies being blocked more than low frequencies.
本文基于对两种非晶软磁合金的低频损耗曲线的分析，探讨了低频损耗曲线非线性的来源。
The behaviour of non-linear dependence of low frequency loss upon frequency has been approached on the basis of the analysis of low frequency loss curves for two types of amorphous alloy.
本文介绍了为校准低频振动传感器而研制的低频振动标准装置。
A low frequency vibrating standard apparatus is developed for calibration of low frequency vibrating sensor.
据说，该设备的输出端还提供了大量低频信号，这些低频信号可用于判定岩石特性以及更深的目地层的成像。
The output also is said to offer a larger volume of the low-frequency signals needed for determining rock properties and imaging deeper targets.
利用1984年夏季ECMWF/WMO资料分析了低频涡度系统和低频辐散环流系统，讨论了两者之间的相互作用。
The present paper gives an analysis of the low frequency (LF) vortex and divergent circulation systems and their interactions in terms of the ECMWF/WMO data (summer of 1984).
利用1984年夏季ECMWF/WMO资料分析了低频涡度系统和低频辐散环流系统，讨论了两者之间的相互作用。
The present paper gives an analysis of the low frequency (LF) vortex and divergent circulation systems and their interactions in terms of the ECMWF/WMO data (summer of 1984).
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