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超音波.脉冲回波扫描器.最大穿透深度和局部动态范围的测量
Ultrasonics - Pulse-echo scanners - Measurement of maximum depth of penetration and local dynamic range
参考页数:42P.;A4
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电声学.人头和耳模拟器.利用耳内插入物的咬合型耳模拟器测量耳机对耳朵耦合性
Electroacoustics - Simulators of human head and ear - Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts
参考页数:24P;A4
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电声学.听力测定设备.听觉发射的测量仪器
Electroacoustics. Audiometric equipment. Instruments for the measurement of otoacoustic emissions
参考页数:20P;A4
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声学.听力保护器.电平相关声音恢复耳罩的有效声压级测量
Acoustics. Hearing protectors. Measurement of effective sound pressure levels for level-dependent sound-restoration ear muffs
参考页数:16P.;A4
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电声学.助听用音频电磁感应环路系统.系统组件性能的具体说明及测量方法
Electroacoustics - Audio-frequency induction loop systems for assisted hearing - Methods of measuring and specifying the performance of system components
参考页数:26P.;A4
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电声学.测试传声器.第2部分:互易技术对实验室标准传声器进行压力校准的基本方法
Electroacoustics —Measurement microphones —Part 2: Primary method for pressure calibration oflaboratory standard microphones by the reciprocitytechnique
参考页数:46P.;A4
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家用和类似用途用声音信号装置
Sound signalling devices for household and similar purposes
参考页数:82P;A4
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电声学.人头和耳模拟器.超级听力和头戴护耳式耳机的测量用耳模拟器
Electroacoustics - Simulators of human head and ear - Ear simulator for the measurement of supra-aural and circumaural earphones
参考页数:30P;A4
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电声学.测量传声器.用比较片做用工作标准传声器的压力校准方法
Electroacoustics. Measurement microphones. Methods for pressure calibration of working standard microphones by comparison
参考页数:28P.;A4
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电声学.测量传声器.用互易技术校准实验室标准传声器自由场的基本方法
Electroacoustics. Measurement microphones. Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
参考页数:36P.;A4
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