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声学.使用声音压力测定噪音源声功率级与声能级.采用反射面上的自由声波场的工程测量法
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane
参考页数:86P.;A4
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声学.声压法测定噪声源声功率级.混响室精密法
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for reverberation test rooms
参考页数:68P.;A4
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工业风扇.平衡精度和振动级规范.修改件1
Industrial fans - Specifications for balance quality and vibration levels; Amendment 1
参考页数:6P.:A4
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加速道路车辆的噪音排放测量.工程法.第2部分:L类
Measurement of noise emitted by accelerating road vehicles - Engineering method - Part 2: L category
参考页数:34P;A4
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声学 低噪声机器工作间设计的推荐实用规程 第3部分:工作室中的声传播和噪声预测
Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 3: Sound propagation and noise prediction in workrooms
参考页数:24P;A4
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声学.供水设施的装置和设备发射噪音的实验室试验.第1部分:测量方法.修改件1:不确定性测量
Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations - Part 1: Method of measurement; Amendment 1: Measurement uncertainty
参考页数:3P;A4
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机械振动和冲击.粘弹性材料动态机械性能的特性.第3部分:旋臂剪切束法.修改件1
Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 3: Cantilever shear beam method; Amendment 1
参考页数:8P.;A4
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机械振动和冲击.粘弹性材料动态机械性能的特性.第2部分:共振法.修改件1
Mechanical vibration and shock - Characterization of the dynamic mechanical properties of visco-elastic materials - Part 2: Resonance method; Amendment 1
参考页数:8P.;A4
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声学.18至25岁听觉正常人群在自由场听力条件下听阈的统计分布
Acoustics - Statistical distribution of hearing thresholds of otologically normal persons in the age range from 18 years to 25 years under free-field listening conditions
参考页数:12P;A4
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机械振动和冲击.人体处于全身振动的评价.第1部分:一般要求.修改件1
Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General requirements; Amendment 1
参考页数:6P;A4
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