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道路交通噪声降低设备. 测定声学性能的试验方法. 第4部分: 内在特性. 声音衍射的原位值
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4 : intrinsic characteristics - In situ values of sound diffraction
参考页数:41P.;A4
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轨道交通.噪声排放.驾驶室内噪声的测量.
Railway applications - Noise emission - Measurement of noise inside driver's cabs.
参考页数:16P;A4
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轨道交通.噪音.经过噪声测量的轨道型材动态性能的特点.
Railway applications - Noise emission - Characterisation of the dynamic properties of track sections for pass by noise measurements.
参考页数:4P;A4
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轨道交通.噪音排放.与产生滚动噪声相关的铁轨粗糙度测量
Railway applications - Noise emission - Rail roughness measurement related to rolling noise generation.
参考页数:35P;A4
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轨道交通.声学.有轨车辆内部噪声测量
Railway applications - Acoustics - Measurement of noise inside railbound vehicles.
参考页数:29P;A4
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轨道交通.噪声排放.经过噪声测量的轨道型材动态性能的特点
Railway applications - Noise emission - Characterisation of the dynamic properties of track sections for pass by noise measurements.
参考页数:19P;A4
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道路交通噪音减弱装置.测定声性能的试验方法.第6部分:内在特性.直达声场条件下空气传声歌吟的现场值
Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions
参考页数:44P;A4
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公路表面外观使用结构的特性.第5部分:巨型结构(megatexture)的测定
Characterization of pavement texture by use of surface profiles - Part 5 : determination of megatexture.
参考页数:40P;A4
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声学.空气中声音的衰减
Acoustics. Attenuation of sound in air.
参考页数:8P.;A4
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小艇.小艇由机动游艇所发出空气噪声.第3部分:使用计算和测量程序进行声音评估
Small craft - Airborne sound emitted by powered recreational craft - Part 3 : sound assessment using calculation and measurement procedures.
参考页数:21P;A4
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