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GB/T 20441.3-2010  China national standard english version:

　
GB
中华人民共和国国家标准
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

GB/T 20441.3-2010

Electroacoustics - Measurement microphone - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
电声学 测量传声器 第3部分：采用互易技术对实验室标准传声器的自由场校准的原级方法
Issued Date:2010-12-01 　 Implemented Date:2011-05-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 20441.3-2010
Standard Category China National Standards
GB Standard English Title Electroacoustics - Measurement microphone - Part 3: Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
GB Standard Chinese Title 电声学 测量传声器 第3部分：采用互易技术对实验室标准传声器的自由场校准的原级方法
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