查询词典 noise

Objective To develop a kind of preliminary screening acoumeter for the prevention of noise-induced hearing loss. Methods This portable preliminary screening acoumeter based on ARM7 LPC2148+SD card+VS1003 can make anti-noise hearing protection.

目的 研制强噪声引起听力损伤预防和快速初筛仪，能预防强噪声给人员带来的听力损伤，并能实施听力损伤的快速筛查。

This paper offers a numerical method for the optimal design of active noise cancellationinthree dimensional space based on the theory of radiation of noise sources and the additivity of linear soundfield.

本文根据声源辐射理论和线性声场迭加原理，提出了一种三维空间有源消声的数值优化方法。

There is no noise elimination measure and noise standards to AHU, air supply unit, exhaust fans.

4空调机组、新风机组、排风机均无消声措施及噪声指标。

Other efforts include the extension of the Red Line in South Quincy and Alewife, the relocation of the Orange Line in Boston's Southwest Corridor, and modernization of the Commuter Rail Network, the restructuring of the MBTA, the formulation of noise rules to halt the increase in aircraft noise at Logan Airport, the development of strategies to achieve high speed rail service between Boston and New York, and the planning for the redevelopment of the Park Square section of Boston through the location and construction of the State Transportation Building there.

其他还有在南Quincy和Alewife地区推进Red Line地铁工程，波士顿西南走廊Orange Line地铁的重新选址，Commuter铁路网的现代化，MBTA工程重建，波士顿机场降低噪音政策的制定，提高波士顿到纽约铁路运行速度的发展战略，以及通过在波士顿Park Square地区修建州交通大厦以振兴该地区的规划。

The noise in the shell increases along with the level of ambient noise in the surrounding area.

因此"海洋"的声音在一个嘈杂的房间中听来会更大。

Secondary noise evolved by the train station is the major source of noise pollution to ambient environment.

在铁路车站噪声影响中，车站影响区域产生的次生噪声相对于站中心的原生噪声，是城区噪声污染的主要因素。

This paper divides general noise eliminations into four groups by the characters of noise in the reflection seismic exploration,analyses their merits and demerits and compared methods with others.The same time,we introduce application domain of the noise eliminations.

本文从反射法地震勘探中噪声的特性出发，将常用的去噪方法分为四类，分析了它们的优点和局限性，并且对不同的处理方法进行了简单的比较，介绍了他们的应用领域。

The histogram equalization technique can improve the contrast of the images degraded by environmental factors like fog, rain, and so on. The noise removal technique can effective remove the pepper-and-salt noise and Gaussian noise.

经研究发现，若影像经「亮度等值化」，可降低外在环境影响；「杂讯滤除处理」可有效降低胡椒盐杂讯及高斯杂讯。

The wave-front detection technique can amplify the variations of the wave-front of the debris flow. The debris flow becomes easy to discriminate. Based on the clean images processing, the detection ratio of the multiple filtering technique can increases from 56.36% to 95.27%. The noise removal technique can effective remove the pepper-and-salt noise and Gaussian noise. The clean images will reduce the false alarm rate for detection of remaining ratio technique.

土石流波前判识」使用前处理影像，可有效的将土石流波前扰动强度放大，较易正确判识出土石流波前；「多重滤波判识」经影像前处理后，可降低因环境带来的不当讯息，结果发现，其判识率由56.36%大幅提升至95.27%；「溪床特定物残留率」判识时，易将杂讯视为特定物，滤除杂讯可有效降低误判之机率。

This is advantageous because if the scheme had averaged the noise but kept the resolution the same then the noise threshold of the converter could have become limited by the quantisation noise therein.

这是有益的，因为该方案平均了噪声，但是将分辨率保持为相同，所以转换器的噪声阈值会变得受其中的量化噪声限制。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。