They keep our air clean, reduce noise pollution, improve water quality and provide food and building materials.
他们保持我们的空气清洁，减少噪音污染，改善水质，提供食品和建筑材料。
Engineers studied how to remove or block sounds, and applied high-tech materials to subdue ambient noise.
工程师们努力钻研如何消音或隔音，再运用高技术材料消除环境噪音。
There were no special materials to block the noise of the engines.
没有特别的材料来阻隔引擎的噪声。
Ten years ago, even discussing the electricity demands or noise from a console seemed silly, and no one even considered the materials used to build electronics. Raw power was Paramount.
十年之前，甚至讨论终端的电量要求或者噪声会被视为愚蠢，甚至没人会考虑构造电子产品的材料。
Noise inside a building can be reduced if both the external and internal walls are made of sound deadening materials.
建筑室内的噪音也可以得到减少，前提是外墙和内墙都要运用这种隔音材料。
Electromagnetic absorbing materials with high frequency and high loss are required to absorb the noise energy, aiming at restraining the electromagnetic leak induced by high-frequency emission noise.
为了抑制高频发射噪声引起的电磁波泄漏，就需要开发频率高损耗大的电磁波吸收材料，有效地吸收噪声能量。
Sound wave passing through different mediums produces varied intensity diminution; hence, greater sound muting materials can be utilized for noise reduction.
音波透过不同介质，会产生不同的穿透损失，故利用特殊的消音材料，以达到消音效果。
Experimental results indicated that there is a monotonic relationship between the hardness of ferro magnetic materials and Barkhausen Noise strength, MP.
试验结果表明，巴克·豪森噪声强度值mp与铁磁材料的硬度值之间存在单调的关系曲线。
The effect of aluminum alloy materials on noise insulation with damping materials can be got.
通过对频响曲线的对比分析，得出阻尼材料复合铝合金型材隔声的效果。
Barkhausen noise analysis (BNA) is a distinctive measure for testing microscopic stresses and metallurgical structure in ferromagnetic materials.
巴氏噪声分析(BNA)是一种检测铁磁材料微观应力及金相组织的独特方法。
However, there is high Barkhausen noise in the integration sensor making by GMR materials, it affect the resolution ratio and stability of integration sensor, and imprison its applications.
由于用GMR材料制成的集成化传感器存在较高的巴克·豪森噪声，影响了集成化传感器系统的分辨率和稳定性、限制了它的应用。
Three kinds of new viscoelastic damping materials are applied in railway vehicles to reduce internal noise.
三种新型粘弹性阻尼材料应用于铁路车辆降低车内噪声。
The application of nanometer materials is reviewed in waste water treatment and waste gas treatment and noise control.
介绍了纳米材料在废水处理、废气处理及噪声控制中的应用。
It is proved that the hardness of ferro magnetic materials can be measured by the Barkhausen Noise Method.
本文提出采用巴豪森噪声法测量铁磁材料的硬度。
Ultrasonic flaw detection in large-grained materials is difficult because of multiple scattering from material microstructure (grain noise).
由于粗晶材料中材料微结构引起的散射(结构噪声)，使得超声探伤比较困难。
The application of nanometer materials is reviewed in waste water treatment and waste gas treatment and noise control. Nanometer materials have a great potential in the environmental protection.
介绍了纳米材料在废水处理、废气处理及噪声控制中的应用。认为崭新的纳米材料在环保领域的应用有着广阔的前景。
The mechanism and methods of viscosity drag reduction are briefly discussed. Some of its applications for saving energy and materials, improving efficiency or reducing noise and vibration are given.
本文综述了几种粘性减阻方法及其减阻的机理，联系了其在水相、油相中节约能源、材料，提高速度和效率等方面的应用。
According to the function mechanisms, polymeric noise reduction composites were classified as vibration damping, sound absorption and sound insulation materials.
降噪材料按降噪机理可分为阻尼减振材料、吸声材料和隔声材料。
Electromagnetic absorbing materials with high magnetic loss in the high frequency range are required to absorb the noise energy, aiming at restraining the electromagnetic interference.
为抑制电磁干扰现象，需要开发应用频率高电磁损耗大的吸波材料，有效吸收电磁噪声能量。
The result shows that Barkhausen noise analysis is a feasible method for inspection on grinding burn of iron-magnetic materials, such as 300m steel.
研究结果表明，用巴氏杂讯分析法检测300m钢类铁磁材料的磨削烧伤是可行的。
The main products: professional automotive noise insulation shockproof materials, imported flooring, fireproofing and plastic, insulation, instrumentation, leather and so on.
公司主要经营：专业汽车隔音隔热防震材料、进口地胶、防火地胶、隔热层、仪表革等等。
The framework materials are also important effect in comfortable ride, noise, high speed performance, hysteresis, ply separation and life time in tires.
骨架材料还对轮胎的乘坐舒适性、噪音、高速性能、滞后性能、脱层和寿命有重要影响。
Disuse tyres and other absorption materials are used and developed to become a new type of noise barrier which can mitigate the traffic noise impaction by reverberation and noise absorption.
并考虑用轮胎和其它吸声材料配合使用，设计一种新型的吸声共振复合声屏障，达到降噪的效果。
Reliability, noise and lifetime of gear is controlled by gear design, machining, materials used and heat-treatment as well.
齿轮的可靠性、噪声和寿命除和齿轮的设计、加工装配等因素有关外，还和齿轮的材料及热处理品质有密切关系。
Absorbing materials' USES have limitations in some respects of noise reduction projects in factory building where there are high temperature, damp, very fast airflow and cleanliness.
在高温、高湿、高气流、高洁净度的工业厂房的降噪工程中，吸声材料的应用仍受到一定的限制。
Therefore, to choose those seen in the decoration noise, sound-absorbing effect good decoration materials.
这看起来不错，却不能起到隔音的效果。
Nano-materials have a lot of excellence of specialty, so nanoadditives have a large application in tribology, recently the advantages of nanoadditives in control of noise have been found.
由于纳米材料具有很多独特的优点，因此纳米添加剂在摩擦学中得到了广泛的应用，最近又发现在噪声控制方面纳米添加剂具有一定的优势。
The instrument for testing residual stress using magneto-elasticity noise technology is developed by means of stress states and releasing noises of materials under and altemating magnetic field.
依据铁磁材料磁化，受力释放的噪讯，研制了利用磁弹噪讯技术检测残余应力的仪器。
The instrument for testing residual stress using magneto-elasticity noise technology is developed by means of stress states and releasing noises of materials under and altemating magnetic field.
依据铁磁材料磁化，受力释放的噪讯，研制了利用磁弹噪讯技术检测残余应力的仪器。
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