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声学 管道消声器和风道末端单元的实验室测量方法 插入损失、气流噪声和全压损失
Acoustics.Laboratory measurement produres for ducted silencers and air.Terminal units loss,flow noise and total pressure loss
价格:¥0.00
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全地形车加速行驶噪声限值及测量方法
Limit and measurement method of noise emitted by accelerating all-terrain vehicles
价格:¥0.00
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声学 应用社会调查和社会声学调查评价噪声烦恼度
Acoustics.Assessment of noise annoyance by means of social and socio-acoustics surveys
价格:¥0.00
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声学 标准等响度级曲线
Acoustics.Normal equal-loudness-level contours
价格:¥0.00
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铁道机车和动车组司机室噪声限值及测量方法
Noise limit and measurement inside driver's cabs of railway.Locomotive and powered car train-sets
价格:¥0.00
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声学 低噪声工作场所设计指南 第2部分;噪声控制措施
Acoustics-Guidelines for the design of low-noise workplaces-Part 2:Noise control measures
价格:¥0.00
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城市轨道交通车站站台声学要求和测量方法
Acoustical requirement and measurement on station platform of urban rail transit
价格:¥0.00
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工程机械 动态试验条件下机外辐射噪声的测定
价格:¥0.00
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声环境质量标准
Environmental quality standard for noise
价格:¥0.00
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