But for materials where you have vibrations, acoustic vibrations, those are low frequency.
但是对于一些有低频振动的材料，如声学振动。
This falls in the extremely low frequency (ELF) range which includes frequencies up to 300 Hz.
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。
the low frequency for certain sets of data, such as national accounts and BOP [balance of payments].
某些数据发布频次低，如国民经济核算和国际收支。
Identifiers-a highly unique set of distinct values with low frequency per value based on set threshold.
标识符(Identifier)—一组高度惟一的不同值，基于设置的阈值，每个值具有较低的频率。
Unlike low frequency data, high frequency data has the calendar effects and long memory volatility.
与低频数据不同，高频数据通常具有“日历效应”和波动长记忆性。
It is suggested that low frequency fluctuation occurs with cavitation inception in water hydraulic pump.
提出了在纯水液压泵中气蚀初生伴随着低频压力脉动现象。
Hardware resources are often allocated based on a worst-case scenario that may happen with a low frequency.
硬件资源通常根据最差情况(发生的概率很低)进行分配。
In this paper, we propose a new algorithm for removing high frequency and low frequency noise in face images.
本文提出了一种解决滤除人脸图像中高频及低频噪声的新算法。
RF (or microwave) signals have switching considerations that differ from those for DC or low frequency AC signals.
射频（或微波）信号的切换不同于直流（DC）或低频交流（AC）信号。
Birds, for example, are said to be able to hear low frequency sounds bouncing off mountains hundreds of kilometres away.
以鸟儿为例，据说它们能够听到来自千里之外的山谷里的低频回声。
All of these provide a reference date for the applications of vibration drilling with low frequency torsional vibration.
为低频扭振型的振动切削应用于生产实践提供了参考数据。
And the researchers found an excess of low frequency CNV deletions - where part of the genome is missing - in shorter people.
研究人员发现，在个子比较矮的人身上，会出现低发生率拷贝数变异过剩——部分基因组缺失。
It is called delta sleep because of the presence of high amplitude, low frequency delta waves that are seen to occur in the EEG.
这个阶段的脑电图以高幅低频的三角形delta波为主，所以被称为Delta睡眠。
The important frequencies for stimulating tissue repair are all in the biologically important extremely low frequency (ELF) range.
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。
Compared to Internet data, the characteristics of financial data is also very prominent, such as low frequency, but higher quality.
相比互联网数据，金融数据的特点也很突出，如频率较低，但质量较高等。
In the wild, elephants often need to communicate over long distances, using low frequency calls to keep tabs on other members of their group.
在野生环境中，大象经常要在距离很远的时候，彼此进行沟通和交流，这时它们会使用低频叫声和同一象群中的其它成员保持联系。
Although accuracy is Paramount to success on the job, least stressful aspects include a comfortable pace and low frequency of conflict situations.
虽然这个职业中准确性是至关重要，压力最低的方面有舒适的工作节奏，低频率的矛盾情况。
Based on wave acoustics, the low frequency sound field is analyzed in this paper, and reciprocity is verified both theoretically and experimentally.
文章根据波动声学的观点对房间内的低频段声场做分析，理论和实验都验证了这个结论。
High frequency pulsed sounds might be used for echolocation, and low frequency time continuous signals related with communication and emotive state expression.
高频脉冲信号可能与回声定位有关，而低频连续信号可能与通信和情感表达有关。
So, similarly in a case where instead we have a small energy difference, we're going to have a low frequency, which means that we're going to have a long wavelength here.
在这个例子里，能量差较小，我们得到的频率低，这意味这它的波长更长。
The first stage of the European Low Frequency Array (Lofar) telescope involves 96 radio antennae being erected this week in a field at the Chilbolton Observatory near Andover, Hampshire.
Lofar望远镜的一期工程位于罕布什尔的安多佛，由96个无线电天线组成的望远镜将在本周被安装完毕。
This focusing is the main reason that even relatively weak sounds in the ocean, especially low-frequency ones, can often travel thousands of miles.
正是由于这种集声，即使是海洋中相对微弱的声音，尤其是低频声音，也能传播数千英里。
The researchers pointed out that low-frequency processes, such as fluctuations in stream flow and groundwater levels, would not usually be apparent to human populations.
研究人员指出，低频过程诸如河流流量和地下水水位的波动，通常不会对人类产生明显影响。
Torres-Sanchez, along with colleagues at Strathclyde University, is experimenting with low-frequency ultrasonic irradiation to ‘excite’ molten polymers as they begin to foam.
托雷斯 -桑切斯，与斯特拉斯克莱德大学的同事一起，正在试验当聚合物开始冒泡的时候，用低频率的超声波照射来“激发”熔融聚合物。
Ackermann suspects that this may be because the right brain is specialized for processing low-frequency information, which is typical of speech, but this theory is still unproved.
Ackermann怀疑这可能是因为右侧大脑专门负责处理低频率的信息，说话就是很典型的一种，但这个假说还没被证实。
The catch is that because low-frequency waves can travel great distances, when they do bounce off cavities or objects underground, they often end up far from the detection equipment at the surface.
捕捉过程是这样的，因为低频波可以传输到更远的距离，当它们遇到地下的空穴或其他物体反射回来的时候，已经距地面的接收装置很远了。
Some residents and visitors in the small city of Taos, New Mexico, have for years been annoyed and puzzled by a mysterious and faint low-frequency hum in the desert air.
美国新墨西哥州小城陶斯的部分居民和访客多年来一直为沙漠空气中一个神秘而微弱的低频嗡嗡声而苦恼和困扰。
What is needed is a system that USES low-frequency radio waves.
这需要的是一种利用低频无线电波的系统。
What is needed is a system that USES low-frequency radio waves.
这需要的是一种利用低频无线电波的系统。
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