查询词典 noise

MF - 250 (811) is grinding machine series, used car bean pulping ideal processing equipment, instead of the low efficiency of millstones and noise, pulp mill, the poor quality of steel products of our company with small noise, plasma mass flexible, convenient operation and maintenance, adjusting thickness is simple, without foundation installation, etc.

MF-250(811)系列磨浆机是目前辆用于米制品，豆制品制浆最理想的加工设备，代替了效率低的石磨和噪声大，浆质差的钢磨，本公司的产品具有噪音小，浆质柔性好，粗细调节方便、操作维修简便、无需基础安装等优点。

Experiment results show that the mechanical-thermal noise coming from the structure and the mechanical performance of a heavily doped Si membrane is the main noise of the device, which can be reduced by minishing the membrane area and extending the membrane thickness to increase the mechanical resonant frequency of the membrane, but should be at the price of reducing the sensitivity of the device.

Hz(上标 1/2)/W。实验表明，器件的噪声中热机械噪声为主要噪声源，大小主要由浓硼硅薄膜的机械性能和器件结构决定，可以通过增大薄膜厚度，减小薄膜面积，从而增加薄膜的特征频率的方法来减小器件受外界振动的影响，但以降低器件的灵敏度为代价。

This article has introduced noise reduction principles and methods, formation mechanism of vehicle exhaust noise, sorts of vehicle exhaust mufflers.

本文系统介绍了噪声控制的方法，汽车排气噪声的产生机理以及车用排气消声器的种类。

MELP vocoders utilize mixed pulse and noise as the excitation to elimate the buzzes in traditional LPC vocoders, and add a jitter voicing state to overcome the tonal noise.

MELP声码器采用混合脉冲和噪声激励解决了经典LPC的嗡嗡声的问题；引入了抖动浊音状态以克服音调噪声；利用参数插值、脉冲散布和自适应谱增强等措施提高合成语音的自然度和可懂度；此外还采用了多带激励，使其具有了比较强的抗背景噪声的性能。

With infrared LEDs, it can provide surveillance even in total darkness. Proprietary noise reduction further increases picture quality by eliminating noise in low light. A 3.8 to 9.5 millimeter varifocal lens allows installers to adjust the field of view to suit each scene.

同时，SIR-4150采用了独特的解决方案，即使在夜晚微光的状态下，同样可以有效降低噪音，使得画面更真实自然。。A3.8mm-9.5mm系列自动调焦镜头可以随时根据视角的变化调整安装位置。

The analysis included the principal of oscillator , the selection of the topology, the characteristic of some frequently-used LC VCOs and some design tips on designing inductors and varactors, the model of phase noise of Leeson and Hajimiri ,estimation of phase noise ,etc.

然后论文对开关电容调谐的LC VCO设计理论进行了详细的分析，包括振荡器工作原理、VCO性能指标、VCO常用结构、片上电感和变容管的相关理论、开关电容调谐理论、Leeson和Hajimiri相位噪声模型，相位噪声估计等。

Among these four varactors, two of them are fabricated on n-well and use the p-n junction between n-well and substrate to isolate substrate noise. The other two are fabricated on p-well and surrounded by deep n-well and n-well in order to isolated substrate noise.

这四种变容器中，其中两种生成於n型井上且利用介於n型井与基体的p-n接面隔绝基体杂讯；另外两种生成於p型井上且被深层n型井与n型井所包围以隔绝基体杂讯。

After the cut-off frequency has been determined, the active noise-filtered system can be designed with several circuits to filter out those frequencies higher than the cut-off frequency and reserve the speech voice only. Besides, the music signals from the MP3 or a CD player can also be transmitted to the earplug system for increasing the signal noise ratio. The anxiety and tension of patients during treatments can, thus, be relaxed due to the euphonious music and toothaches of the patient might be further reduced.

本研究首先以离线的方式收集各类牙科噪音，然后将它传递到个人电脑，并使用CoolEdit及LabVIEW软体程式，分析出在牙科治疗过程中所产生之噪音的频率范围，最后透过各种比较，找出适当的截止频率，在截止频率(1KHz)被决定之后；针对该截止频率，使用主动式滤波的方式设计出相关的电路，组成主动式噪音率除系统，来滤除那些高於截止频率的噪音信号，只保留语音频率范围；此外透过mp3或cd player所播放出的音乐讯号，也可以同时被传递到耳塞系统来增加信号杂讯比，那麼当病人在治疗时，因为有这音乐可以使病人的焦虑跟紧张获得舒缓。

This invention relates to three-dimensional seismic data processing quality monitoring technology. Selecting time-window and analysis frequency for FFT to obtain frequency-domain conversion result for every channel; taking mean-filter to obtain the statistic excited energy or noise disturbance; plotting all results on plane graph to monitor the 3D excited energy or noise disturbance; taking normalization and autocorrelation to all earthquake channel; summating all autocorrelation statistic result to obtain opposite statistic autocorrelation result; finding out and plotting the zero-crossing of autocorrelation on plane position for monitoring excited wavelet.

本发明涉及一种三维地震资料处理质量监控技术，步骤是：选定时窗和分析频率；对某炮各地震道在时窗内做快速富立叶变换，得到道数据在频率域变换结果；对同炮的所有地震道做频率域中值滤波，得到该炮的统计激发能量或噪声干扰量结果；将所有炮的计算结果绘到各炮点平面图上，监控三维激发能量或噪声干扰；对地震数据某炮的各地震道做归一化自相关；对同炮的所有地震道的自相关统计求和，得到该炮的统计自相关结果；寻找该炮统计自相关的零交叉时，将所有炮的零交叉时绘到各炮点平面位置上，完成激发子波监控。

Essentially,the subtractor feeds the supply noise directly into the feedback loop of the bandgap circuit which could help to suppress supply noise.

本电路的基本工作原理是将电源噪声直接添加到电路的反馈环节，帮助抑制电源噪声。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。