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Chinese Standard: GB/T 6881.3-2002

Acoustics—Determination of sound power levels of noise sources-using sound pressure—Engineering metheds for small,movable sources in reverberant fields—Part 2:Methods for special reverberation test rooms

IDT  ISO 3743-2:1994

全国声学标准化技术委员会                          

This standard is the original Chinese electronic standard.
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