The tubular cross flow fan is the main component of rotation noise and worm flow noise.
矿用贯流风机噪声的主要成分是旋转噪声和涡流噪声。
Flow noise in the interior fluid of a vector hydrophone towed linear array is analyzed.
研究矢量拖曳式线列阵声呐护套管内的流噪声场。
In this paper, the mechanism of flow noise production and the methods of flow noise reduction are presented.
本文阐述了水下流噪声产生的机理以及物体表面状态性能对湍流边界层的影响。
The flow noise reduction of al alloy model with low surface energy coatings have been studied in a water tunnel.
低表面能涂层涂覆在铝合金模型上，考察了其在水筒中低频段降低流噪声的效果。
Air compressor noise is the main noise source. From the Angle of air flow noise, can be briefly analyzes the following.
气流噪音是空压机的主要噪声源。从气流噪声的角度，可以简要分析如下。
Use finite element and infinite element technology, and unified method to simulate flow noise, vibration noise and sound propagation.
采用有限元和无限元技术，用统一的方法模拟流动噪声、振动噪声及声传播问题。
Large Windows in the basket both above and below the spider reduce sound reflection, air flow noise and cavity resonance to a minimum.
合金盆架上较大的镂空设计使回声、气流噪声和空腔谐振等降低到最低水平。
The numerical simulation method of flow noise can supply the theoretical support for the optimal design of cavities of submerged bodies.
本文建立的流噪声数值模拟方法，为水下潜体的开孔优化设计提供了理论支撑。
Therefore, double screw compressor and worm compressor compared, in the same speed of the units inside less number of exhaust air ripple, big air flow noise.
因此，双螺杆压缩机与蜗杆压缩机相比，在相同转速下单位内排气次数少，气流脉动大，气流噪声大。
The flow noise transit time estimation is given on the basis of mathematics model and linear neural networks, then the flow velocity of gas-solid two phase flow is measured.
并以此为基础通过线性神经网络测量流动噪声的渡越时间，进而测出流速。
Simulation results show that the reducing flow noise ability of this damping structure can be increased by 3 times, as well as it does not affect the sensitivity of hydrophone.
仿真结果表明，该减震结构抑制流噪声能力可提高3倍以上，同时几乎不影响水听器的接收灵敏度。
Noise of bag-type dust filter is analyzed too, the results indicated that air flow noise is existed in the bag-type dust filter, needs to adopt the silencing measure for noise reduction.
对袋式除尘器噪音进行分析，结果表明袋式除尘器存在气流噪音，需要采取消音措施降噪。
The SPRD will automatically open as the air pressure in the duct system increases, in order to prevent the reduction of air flow and excessive noise and velocity through the duct system.
当管道系统空气压力增加时，SPRD会自动开启，以防止管道系统中空气流动的减少和过度噪音和速度。
Speed is reduced, the pump flow rate will increase instead, and the noise of the pump will be lower, but certainly can't flow theory.
转速降低以后，泵的流量会反而增加，而且泵的噪音会降低，但肯定打不到理论流量。
Because velocity of flow reduces when the pressure pulse reduces, the noise of impulsion and the noise of vortex increase a little.
因为压力脉动减小导致流速增加，从而使冲击噪声和涡流噪声略有增加。
Import sampling pump, sampling flow stability, Small noise.
进口采样泵，采样流量稳定，噪音小。
In terms of air flow and noise level, we actively do AMCA Association of industrial and is widely considered to be fan service to a higher ideal height.
在空气流量和噪音水平方面，我们积极的促进AMCA协会而被广泛认为是将风机工业及服务推向了更高的理想高度。
This paper introduced control valve selection and its application based on the theory of flow characteristic, pressure drop, flashing, cavitation and noise.
针对调节阀的流量特性、压降、闪蒸、气蚀及噪音等问题介绍了调节阀在选型和应用中的要点。
It not only damages flow continuity and reduces medium physical performance, but also induces vibration and noise.
不仅破坏了流体的连续性、降低了介质的物理特性，而且引起振动和噪声。
Subsequently, the distribution of noise emission sources within the flow field was found by using FW-H equations, based on a shear-layer noise model.
然后采用基于FW - H方程的剪切流噪声模型，求解了蒸汽流场内的噪声源幅度分布。
The theory analysis and experiments indicate that, with the integrative optimistic design, the axis flow fanner has evidently improved in efficiency and reduced noise.
理论分析与实验测试结果均表明，通过全局优化设计后，提高了轴流风机的效率，降低了噪音。
On the other hand, would music be reduced to a swirl of background noise once you have it on in a constant flow around the clock?
另一方面，让歌曲一天到晚不断地在你耳边流淌，是否导致音乐沦为一种背景噪音呢？
The spatial stochastic distribution of phase concentration would cause a differential pressure noise when two phase flow is crossing a throttling set.
两相流流过节流装置时产生的差压测量噪音是由于相浓度在空间的随机分布所引起的。
It was shown by calculation results that the flow ripple and fluid noise of hydraulic pump increased seriously when the bulk modulus descended.
结果表明，随着油液体积弹性模量的下降，泵的流量脉动及流体噪声均增大。
It is briefly introduced that a set of high flow cavitation noise measuring system has been used recently.
扼要地介绍了一套最近研制成功的高速水流空化噪声测试系统。
This paper has analyzed the relationship of flow, pressure pulsation and noise in hydraulic system, and has inquired into generation and propagation of fluid noise in the system.
本文分析了液压系统流量、压力脉动与噪声的关系，对系统的流体噪声产生与传播进行了一些探讨；
The theoretical and experimental analyses of noise sources in axial flow fans are involved and the methods of noise reduction in fans are summarised in this paper.
本文对轴流风机的噪声源进行了理论和实验分析，对降低风机噪声的方法进行了总结。
The endless flow traffic makes harsh noise that people even can not sleep well at night.
川流不息的车子发出刺耳的噪音，人们在晚上都不能睡个好觉。
The fluid pressure pulse and flow-noise in water piping system decreased the operation safety of piping system and hiding ability of submarines.
水管路系统流体压力脉动及其引起的流噪声会降低管路系统自身工作的可靠性和舰船的隐蔽性。
The fluid pressure pulse and flow-noise in water piping system decreased the operation safety of piping system and hiding ability of submarines.
水管路系统流体压力脉动及其引起的流噪声会降低管路系统自身工作的可靠性和舰船的隐蔽性。
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