低频

Esides the Grados being a "neutral, detailed, and warm-sounding headphone overall, with extended frequency extremes, wide dynamic range, and the ability to sound natural at a wide range of volume levels," BJR found the SR125s "simultaneously musical and revealing of every nuance recorded," but never aurally or physically fatiguing.

ob 使用SR125监听自己的录音时发现这只耳机的真正特色，除了具备Grado特有的"中性、精致、温暖的声音特质，加上优异的高低频延伸、宽广的动态范围与在任何音量下皆能发出自然的声音的能力"，"它同时地保有音乐性和能发掘出录音讯息中的细微差别"，但决不会引起听觉或身体上的疲劳。

It also gives the definitions and stochastic properties of pure random process, random walk process and AR(1) autoregressive process, and analyses the simulative data of three typical random processes using wavelet analysis, frequency spectrum analysis and time-correlation analysis. The stochastic properties of time series and the trend component, the time length of time-correlation and the properties of main frequency of these three typical random processes are summarized as the templates for further research.

给出了包括纯随机过程、随机游走过程和 AR(1)自回归过程等在内的基本随机过程的定义和统计特征，并运用小波分析，时间相关和频谱分析对这三种基本随机过程的模拟数据进行分析，归纳出它们在时序上的随机特征、低频信号趋势项特征、时间相关的长短以及主频信号的位置等特点，作为研究 GPS 接收机误差和多路径效应的随机特征的模板。

A series of problems in the latest developments of electronic bal

本文通过对一种380V高电压输入600W高频电子镇流器以及一种新型的低频方波电子镇流器的开发研究对高强度气体放电灯电子镇流器中的一系列问题展开了详细的讨论。

Large baleen whales primarily use the lower frequencies and are often limited in their repertoire .

大的须鲸主要使用低频，在它们所有的技能中它们使用的很少。

In order to solve this problem, the paper presents a so - called Bi - watermarking Algorithm Based on Wavelet Packet and DCT transform.

针对这一问题，该文在结合小波包变换和离散余弦变换的同时，在图像小波包分解后的低频和高频部分选取适当系数分别嵌入同一个水印。

The bimodality appeared at high frequency which depends on the method used may be a false phenomenon, and which appeared at low frequency of swell can be attributed to the too weak nonlinear interaction between waves to transfer energy among different directions effectively.

高频域出现的双峰方向分布不仅依赖于估计方法，而且受到使用不恰当频散关系的影响，因此它可能是一种物理假象，但涌浪低频域的双峰方向分布随非线性度的减小出现的比率增大，可以由非线性相互作用过弱，不同方向之间不能有效传递能量来解释。

Note that in the "viral" marketing campaign for the film, there were hints concerning the "Bloop" incident. Several times during the summer of 1997, the U.S. National Oceanic and Atmospheric Administration recorded an ultra-low frequency underwater sound using U.S. Navy "spy" sensors 3,000 miles apart.

应该注意到在该电影的"病毒性"市场营销里，有一些关于"杂音"事件的暗示。1997年夏天，美国国家海洋大气局使用美国海军"间谍"探测器记录下了一段3000英里外水下的超低频声音。

In chapter 5 a 2D inverse technique is presented, in which the distorted Born approximation is used to speed up the convergence and the preceding INMM is employed to achieve a high speed.

第五章介绍二维低频电磁问题反演方法。为了加速收敛，采用了变形Born近似。

A new control method proposed to control the half bridge inverter to supply the lamp with low square wave current.

这种新型的控制方法使灯工作于400Hz的低频方波工作状态，保证不出现声谐振的发生。

In civil engineering applications, for example harbor-constructing and bridge-building, need information of sea bottom.

在民用方面，修筑港口，建设跨海大桥；军用方面，匹配场定位、低频远程声纳作用距离预报、潜艇沉底隐蔽地点选择等方面都有广泛的应用。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失