Noise is included aerodynamic noise and structure noise.
噪声主要包括气动噪声和结构噪声。
Acoustic similarity is the base of scaled model tests of underwater structure noise.
声学相似性是水下结构噪声模型试验的基础。
The relation between the signal-to-noise enhancement and the correlation function of the structure noise for varying acoustic parameters have been deduced.
推导出了声参数变化时的信噪比增益与结构噪声相关函数的关系。
These levels come from outside activities that penetrate the classroom structure, from teaching activities, and other noise generated inside, which can be exacerbated by room reverberation.
这些（噪音）可以是穿透教室建筑结构的室外活动声、教学活动的声音以及室内产生的其它各种声响，这些声音都会因为房间的回声效果而被放大。
It does this by fitting small piezoelectric acoustic sensors to parts of the structure to detect the particular frequency of noise caused by a crack in aircraft-grade aluminium.
把小型压电声传感器安装到这种构造部位上，检测由航空级铝材裂纹所致的特定频率的噪音，靠这样就能监测飞机裂纹。
Structure: Wood frame construction with maximum thermal insulation and noise reduction
结构：木主体结构建筑，拥有最佳隔热和降噪性能
It has been proved that structure of food chain, immigration and emigration, environment noise can influence the pattern of complex population dynamics.
研究表明食物链的结构、种群的迁入和迁出、环境噪音都会对种群的复杂性动态特征产生影响。
Reform the structure of generator set, enhance machining accuracy, reduce noise made by electromagnetism and fans from design.
改善发电机结构，提高加工精度，从设计上减少发电机所产生的电磁及风扇噪音。
Due to the small scale of small towns and unreasonable industrial structure, there are pollutions of water, gas and noise.
但由于小城镇自身的规模偏小，产业结构不合理等诸多原因，造成的水、大气、噪声等污染依然存在。
The outside noise of the stones is perceived inside, it resonate in the box-shaped modules and it's amplified by the metal structure itself.
石头的外部噪声会被内部感知，它在盒形模块中传播并且音量会因为本身的金属结构而扩增。
Small size, light weight, low noise, simple structure, easy maintenance.
体积小，重量轻、噪声低，结构简单，维修方便。
All synchronism belts driving are structure simple, noise lower, running steady and vibrate lower.
所有动力均采用同步带传动，结构简单，噪音低，运行平稳，振动小。
Upper exhaust structure, which can decrease working noise.
选用上排风结构，降低工作噪声；
A method to determine low noise fan volute structure is provided.
提供了一种确定低噪声离心通风机蜗壳结构的方法。
Scroll machine which possess characteristics of high efficiency, small bulk, light weight, low noise, simple structure and working smoothly etc, is used in supercharged vehicle engine.
涡旋机械由于其结构简单、效率高、体积小、噪声低、运转平稳等特点被应用于车用增压器技术中。
The latest style large capacity muffle with special structure has reduced the noise of exhaust gas. A larger air filter is employed to reduce the noise of suction gas.
新型大容量和特殊内部构造消音器降低了排气噪音。采用较大的空气滤器减少了进气噪音。
Concerned with the privacy and noise from the outside, we incorporated an outdoors space into the structure.
考虑到隐私和外部噪音，我们将一个户外空间合并到建筑里。
All transmissions part changes from chain drive structure to synchronized tooth belt, which has more smooth transmission and less noise.
所有传动部件改以往的链条传动为同步齿形带传动，其传动更平稳，噪声更小。
There was plenty of noise inside the spheres on a recent tour, as workers welded steel, pounded bolts into place and sawed concrete inside the half-built structure.
在前不久的一次参观中，球屋里充斥着各种噪音，在这个正在建设中的建筑里，工人们在焊接钢筋，打入螺栓，切割混凝土。
It can be pushed and pulled smoothly without noise as it adopts special rail and automatic adjusting double-wheel structure.
采用专用轨道和自动调节的双轮结构，推拉平稳轻快，无噪音。
It is shown that the testing machine has advantages of low production cost, compact structure, high accuracy, stable and reliable, high efficiency, energy saving, and low noise, etc.
结果表明，该试验机具有制造成本低、结构紧凑、测试精度高、工作稳定可靠、效率高、节能、噪声小等优点。
Acoustic-Structure sensitivity is used to predict the change of acoustic pressure when structure design variable was changed, which is significance for reducing noise of structure.
声学-结构灵敏度用于预测结构辐射声压随结构设计变量的变化，该值对结构降噪设计有重要意义。
The study can be useful for reducing the noise and remodeling the structure of the motor.
该研究为降低噪声及电机结构的进一步改进提供了依据。
The adoption of capacitor feedback transimpedance amplifier (CTIA) and correlated double sampling (CDS) structure helps to reduce the noise of the circuit.
电路采用电容负反馈互导放大器(CTIA)及相关双取样(CDS)结构，有利于减小电路的噪声。
The results obtained make it possible to reduce the motor vibration and noise by means of structure modification.
研究结果使通过结构修改来降低电机的振动噪声成为可能。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
For maximum exceed noise ratio generated, circuit structure to match the equivalent circuit diagram of the solid-state noise diode in avalanche breakdown state has been designed.
根据固态噪声二极管在雪崩击穿状态的等效电路，设计出与之匹配的电路结构，以实现超噪比的最大输出。
The cycloid rotor pumps are applied to many fields more and more widely with the advantages of compact structure, stable running and low noise.
摆线转子泵因其结构紧凑、运转平稳、噪音低等优点而被越来越广泛地应用于各个领域。
After calculating the flow field of the pyramidal, the relationship between energy loss, noise and the structure of the valve has been analyzed; the flow channel has been optimized.
应用有限元方法对液压锥阀流场进行数值预报，分析其能量损失，噪声和流场结构的关系，并在此基础上对流道结构进行优化设计。
In this paper, the multirate filter bank can be used to design new structure of adaptive noise cancellation.
利用多分辨率滤波器组设计了自适应噪声消除新的电路结构。
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