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声学 校正听力设备的基准零级 第4部分:窄带掩蔽噪声基准级
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise
参考页数:4P.;A4
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声学.用声屏蔽法控制办公室和工作场所噪音的指南
Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens
参考页数:17P.;A4
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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-acoustic surveys
参考页数:16P.;A4
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声学 校正听力设备的基准零级 第2部分:纯音和插入式耳机用的基准等效阈声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
参考页数:7P.;A4
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声学 校正听力设备的基准零级 第3部分:骨振器纯声基准等效閾力级 技术勘误1
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent treshold force levels for pure tones and bone vibrators; Technical corrigendum 1
参考页数:2P.;A4
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声学.校正听力设备的基准零级.第8部分:耳罩式耳机纯音基准等效阈声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones
参考页数:12P.;A4
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声学 校正听力设备的基准零级 第1部分:纯音和压耳式耳机用的基准等效阈声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
参考页数:10P.;A4
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声学.环境噪声的描述、测量和评价.第1部分:基本参量和评价方法
Acoustics - Description, measurement and assessment of environmental noise - Part 1: Basic quantities and assessment procedures
参考页数:47P.;A4
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声学.听力测定设备校准用基准零级.第7部分:在自由场和漫射场听力条件下的基准听阈.修改件1:在自由场1条件下20赫兹和18000赫兹的基准听阈
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions - Amendment 1: Reference threshold of hearing at 20 Hz and 18000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions
参考页数:2P.;A4
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声学. 听力测定设备校准用标准零级. 第3部分: 纯音和骨振动器的标准等效阈值振动力水平
Acoustics - Reference zero for the calibration of audiometric equipment - Part 3: Reference equivalent threshold vibratory force levels for pure tones and bone vibrators
参考页数:13P.;A4
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