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电声学.听力测定设备.短时持续试验信号
Electroacoustics - Audiometric equipment - Test signals of short duration
参考页数:18P.;A4
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声学.测听设备校准用基准零点.短时持续试验信号用参考扩音阀
Acoustics - Reference zero for the calibration of audiometric equipment - Reference threshold of hearing for test signals of short duration
参考页数:18P.;A4
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声学.听力测量设备校准用参考零点.频率为8kHz~16kHz纯音用参考等效阈值声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz
参考页数:18P.;A4
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声学.校准音响设备标准基准零点.在自由场所和非扩散场所听力条件下听力基准阈值
Acoustics - Reference zero for the calibration of audiometric equipment - Reference threshold of hearing under free-field and diffuse-field listening conditions
参考页数:20P;A4
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电声学.听力测定设备.听觉声阻抗/导纳测量用设备
Electroacoustics - Audiometric equipment - Instruments for the measurement of aural acoustic impedance/admittance
参考页数:32P.;A4
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声学.用社会和社会声学测量法评定噪声干扰
Acoustics - Assessment of noise annoyance by means of social and socio-acoustic surveys
参考页数:24P.;A4
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声学.用声障板控制办公室和工作室噪音的指南
Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens
参考页数:26P.;A4
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声学.音响设备校正基准零点.纯音和超听觉耳机用基准等效阈值声压级
Acoustics - Reference zero for the calibration of audiometric equipment - Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones
参考页数:20P.;A4
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声学.标准等响曲线
Acoustics - Normal equal-loudness-level contours
参考页数:28P.;A4
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人类工效学.语音通讯的评估
Ergonomics - Assessment of speech communication
参考页数:40P.;A4
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