EN 61183-1994 en Electroacoustics - Random-Incidence and Diffuse-Field Calibration of Sound Level Meters《声级计的无规定射声场及扩散声场的校正(IEC 1183 1994)》.pdf

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EN 61183-1994 en Electroacoustics - Random-Incidence and Diffuse-Field Calibration of Sound Level Meters《声级计的无规定射声场及扩散声场的校正(IEC 1183 1994)》.pdf_第1页
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EN 61183-1994 en Electroacoustics - Random-Incidence and Diffuse-Field Calibration of Sound Level Meters《声级计的无规定射声场及扩散声场的校正(IEC 1183 1994)》.pdf_第3页
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EN 61183-1994 en Electroacoustics - Random-Incidence and Diffuse-Field Calibration of Sound Level Meters《声级计的无规定射声场及扩散声场的校正(IEC 1183 1994)》.pdf_第5页
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