Engine exhaust noise is a main source for construction machinery noise, and it has a very significant impact on the level of construction machinery noise.
发动机排气噪声是工程机械整机噪声中最主要的噪声源，对于工程机械整机噪声水平的高低有重要的影响。
Machinery noise control technology applications in the ship can not only improve the human work environment, but also improve the performance of ship stealth.
机械噪声控制技术在舰船上的应用不但可以改善人机工作环境，而且还可以提高舰船隐身性能。
Then the pipe system becomes the main noise resource of quite submarine, when propeller noise, hydrodynamic noise and machinery noise of facility base are controlled effectively.
指出螺旋桨噪声、水动力噪声和设备机座机械噪声被有效抑制后，管道系统便成为“安静型”潜艇的主要噪声源。
Those experiencing these disorders often find sounds such as crowd noise and the noise generated by machinery painful and distressing.
那些经历这些障碍的人常常觉得噪音——如人群的噪音和机器产生的噪音——令人痛苦和苦恼。
Working with loud machinery can cause tinnitus or noise induced hearing loss.
使用噪声大的机器工作会导致耳鸣或噪音性失聪。
The most common sources of noise-induced hearing loss include explosions, power tools, music and common machinery.
诱发听力损伤的最常见的噪音源包括爆炸、电动工具、音乐以及常用机械。
Excessive noise, including working with noisy machinery, exposure to loud music or other loud noises, such as gunfire or explosions, can damage the inner ear and weaken hearing ability.
过量的噪音，包括机器轰鸣声、音乐声过响或其他噪音过大，如枪声或爆炸声，有可能损害内耳道，使听力减弱。
Noise jamming for electric control system of packaging machinery is very harmful.
噪声干扰对于包装机械电控系统的危害很大。
To adopt the construction machinery with low noise for the field construction to alleviate the noise.
现场采用低噪音施工机械施工，减轻噪声扰民。
The vibration signals generated by the machinery malfunctions are usually covered by the background strong noise.
机械故障产生的信号往往淹没在环境干扰信号之中。
Textile machinery - noise test code - yarn processing , cordage and rope manufacturing machines.
纺织机械。噪声试验规程。纱的加工缆索和绳制造用机械。
Some examples of application of AVC to machinery, architectural structure and noise control engineering are also given.
例举了有源振动控制在机械、建筑、噪声控制工程中的若干应用；
This method also may further promote applies to has the strong noise, the strong impact rolling bearing, the reciprocation machinery and so on in the diagnosis work.
该方法还可进一步推广应用到存在强噪声、强冲击的滚动轴承、往复机械等的诊断工作中。
By analysing the causes of the machinery impact noise, the authors of this paper mainlydiscuss how to analyse it by the technique of impact stimulation both in theory and practice.
本文从分析机械性冲击噪声的发生机理和影响因素入手，论述了用冲击激励技术分析机械性冲击噪声的理论和方法，并进行了实验验证。
The vibration and noise of electrical machine is the important symbol for evaluating the electrical machinery quality.
电机的振动和噪声是评定电机质量的重要标志。
The seat vibration level is important for evaluation of the machinery quality in the research and development(R&D) of the low noise machine.
机脚振动级是评价机械设备振动特性的一项重要指标，是低噪声机械设备研制和验收的重要检测项目。
The noise of wood-based panel machinery mainly includes mechanical noise, air dynamic noise, etc.
人造板机械的噪声主要有机械噪声和空气动力性噪声。
There was a ceaseless noise of machinery.
机器不停地发出噪音。
Unwanted sound, or noise, such as that produced by airplanes, traffic, or industrial machinery, is considered a form of pollution.
不想听到的声音，或说是噪音，是由诸如飞机、交通工具和工厂机器等等的东西制造的，它也被认为是一种污染形式。
On the topic of noise, be aware that rotating machinery, no matter how well balanced, will still vibrate due to harmonic resonances if the number of vanes is an even number.
对噪音问题，要知道旋转机械，无论怎样很好的平衡，仍然会由于谐波共振振动如果数字的叶片是一个偶数。
Noise, such as that produced by airplanes, traffic, or industrial machinery, is considered a form of pollution.
噪声，如生产的飞机，交通，工业机械，被认为是一个形式的污染。
The research of gear noise occurrence reason and its solution methods is extremely effective to reduce the project machinery radiated noise and the noise in the drivers' cab.
研究齿轮噪声的发生原因及其解决方法。对于降低工程机械整机的噪声及司机室内的噪声都是十分有效的。
At present, the part in the room has a transverse flow blower. Its noise comes from two aspects, one is air-flowing and the other is machinery vibration.
现有的空调器室内机中都有一个横流风机，它的噪音主要有两种：空气流动噪音和机械振动噪音。
Through the auditory analysis of the various parts of lifting machinery and equipment running sound is normal, abnormal noise from site to determine …
高手帮翻一句话经过听觉剖析出起重机械设备各部位运转声音是…
Visco-elastic material has good structural damping characteristics, which can play a significant role in the design of machinery with noise and vibration problems.
不仅因为振动噪声普遍存在，还因为它对于一些重大工程项目有着巨大的影响。
When any noise, vibration, or overheating develops, shut down the machinery as soon as practical, and get help and advice from the rig mechanic for eliminating the trouble.
当出现异常声音、震动或过热，应当立即停止作业，并找机械师来帮助排除故障。
Floating raft isolation system can obviously restrain vibration from machine to the hull, thus has been widely applied in naval power machinery anti-vibration noise reduction fields.
浮筏隔振系统能够明显地抑制从机器到船体的振动传递，在舰艇动力机械减振降噪领域得到了广泛应用。
This machinery structure compact, low noise, high output, low wastage, simple to operate, convenience to dismantle and install, without any environment pollute, the crush powder thin are excellence.
该机结构紧凑、噪音低，产量高、能耗低、操作简单、拆装方便、无任何环境污染，所得粉体细度均匀等优点。
Most laboratories and industrial environments have many kinds of electrical-noise sources at all frequencies from heavy machinery, instruments, power supplies, and TV stations.
大多数实验室和工业环境中存在全频率下有多种电子噪声源，主要来自重型设备、器械、能量源和显示器。
Most laboratories and industrial environments have many kinds of electrical-noise sources at all frequencies from heavy machinery, instruments, power supplies, and TV stations.
大多数实验室和工业环境中存在全频率下有多种电子噪声源，主要来自重型设备、器械、能量源和显示器。
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