同时，这种井盖还具有绝缘、无噪声的特点。
At the same time, the manhole cover has the characteristics of insulation, noise free.
由于下转换光子对具有很强的时间相关性，可用来进行无噪声的光通讯。
Since the downward conversion photon pairs have strong correlation in time, they can be used for noise - free optical communication.
通过检查，当第一个测量值是无噪声的，那么该滤波器就忽略了第二个测量值，反之亦然。
By inspection, when the first measurement is noise free, the filter ignores the second measurement and vice versa.
在无噪声的情况下，使用任意一阶模态数据，残余力向量法都能够对损伤进行准确定位。
The first step identifies the location of the possible damaged poles by analyzing the joint residual force vector.
当测试对象被要求在无噪声条件下对书面材料进行校对时，不同的噪声条件会产生不同的后效应。
The different noise conditions had quite different after-effects when the subjects were required to proofread written material under conditions of no noise.
研究人员已经发现，深度睡眠者能阻止外界噪声进入大脑，从而获得无扰状态的睡眠。
Researchers have found that heavy sleepers are able to block outside noise getting to their brains and lead to undisturbed sleep.
考虑在无噪声中睡觉，无论是从床头风扇还是机器产生平静的声音。
Consider going to sleep to the sound of white noise, either from a bedside fan or a machine that generates calming sounds.
全面分析了一种保护用软件频率跟踪算法的性能，论证了在无噪声干扰的情况下该算法的有效性。
A software based frequency tracking algorithm for protective relaying is analyzed thoroughly. in this paper, the availability of this algorithm under the non-noise condition is proved.
有噪声情况下和无噪声情况下的识别结果显示本文方法具有一定适用性。
The identification results through the noise free measurements and the noise included measurements show the applicability of this method.
利用小波变换模极大值原理，提出了用小波变换尺度谱检测瞬态信号波至点的新方法，研究了其检测无噪声和有噪声条件下的瞬态信号的能力。
Based on the principle of modulus maximum, a new approach using scalogram of wavelet transform for transient signal, under noise free condition or noise condition separately, is described.
本文给出了一种计算无噪声时具有正弦鉴相器的二阶锁相环捕捉特性的新方法，求得了每个差频周期的平均角频率牵引量。
A new method is presented for analyzing the acquisition behavior of second-order PLL with sinusoidal phase detector in the absence of noise.
中空玻璃主要用于需要采暖、空调、防止噪声或结露以及需要无直射阳光和特殊光的建筑物上。
Hollow glass is mainly used in buildings with demand on heating, air conditioning, preventing noise or dew, as well as the buildings preventing direct sunlight and special light.
当时，诸如空气清新、水质洁净无噪声污染之类的问题，都不是公众什么了不起的关切所在。
Such issue as clean air, pure water and freedom from noise pollution were not important public concerns.
结果表明，在无测量噪声条件下，本文所提出的公式是理论上的精确表达式。
The simulation results indicate that the derived formulas are theoretically precise when there is no measured noise.
F80系列无油活塞式真空泵，具有体积小、重量轻、噪声低、免维护、高寿命的优点，产品通过ISO- 9001质量体系认证。
The series of F80 Oil free Piston Vacuum Pump, characterized as compact appearance, low noise, durability and maintenance free, has passed the ISO-9001 Quality System Authentication.
与渐开线齿轮泵相比，圆弧齿轮泵的特点是：体积小、无脉动、转动平稳、效率高、噪声低以及寿命长等。
Comparing with involute gear pumps, circular tooth gear pumps have following characteristics: compact structure, no pulsation, stable rotation, high efficiency, low noise, and long working life.
采用白噪声信号作为标准声源的输入信号，在常温无气流条件下对消声器实物模型进行了静态放声试验。
After a white noise signal has been taken as the input of a standard sound source, a static acoustic test is conducted for a prototype silencer without air flow and at the normal temperature.
本文提出的机械测量仪设计方案，经试制具有精度高，体积小，结构简单，操作和携带方便、无振动和噪声的优点。
This paper provide a new design, it has high accuracy, small volume, simple structure, easy operating and bring and no vibration and noise.
这种低噪声、无排放物的小玩艺儿早就在美国航空航天局的航天器上派上了用场。很多环保主义者对它寄予厚望，期待它能为首批大量生产的电动小轿车提供动力。
These silent, zero-emission gadgets have long been used in NASA spacecraft. They represent the great hope of many environmentalists to power the first mass-produced electric car.
永磁同步电机与其它电机相比具有低转动惯量、高转矩电流比、低噪声、无励磁损耗等一系列的优点。
Compared with other motors, Permanent Magnet Synchronous motor (PMSM) has the advantages of low inertia, high torque-current ratio, low noise, no excitation loss.
运用量子熵理论，引入量子无噪声编码方法，并研究了量子信道中的信息容量问题。
The quantum noiseless coding method is discussed with the quantum entropy theory, and the capacity of quantum channel.
本文提出用于地下成像无源地震方法的分析，在该方法中应用环境地震噪声作为地下散射体的照明源。
An analysis of a passive seismic method for subsurface imaging is presented in which ambient seismic noise is employed as the source of illumination of subsurface scatterers.
对该参数体系进行噪声适应性测试的实验结果表明，无噪声情况下样本识别率为87.50%；
Next, noise compatibility test of this parameter system was carried on. The simulation result was: the sample recognition rate was 87.50% in non-noise condition;
需要注意的是如果变压器和线路耦合元件精确的已知，识别算法在无噪声环境里精确的距离超过18千英尺。
It should be noted that if the transformer and line coupling components are known precisely, the identification algorithms are accurate beyond 18 KFT for noiseless conditions.
无源雷达系统接收到的信号有四部分组成：直达波信号、静物回波信号、动目标回波信号以及干扰噪声。
The signal received by passive coherent radar contain four-part: direct signal, echos of still object, echos of moving object, and interference.
传统噪声控制的方法是采用无源的控制技术，这对控制高频噪声较为有效，对低频噪声控制效果不大。
The passive noise control technology is used in the traditional method, which is more effective on high-frequency noise control, but the effect on low-frequency is not very good.
理想的室内音质是无噪声干扰的。
理想的室内音质是无噪声干扰的。
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