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Number of entries (Data is updated on a monthly basis): 48250
GB/T 17250-1998
Acoustics--Measurement of noise emitted by passenger cars under conditions representative of urban driving
GB/T 17251-1998
Acoustics--Calibration method of hydrophone acceleration sensitivity
GB/T 10240-1988
Specifications for the editing and production of programme source for subjective assessment of sound quality of electro-acoustic products
Number of entries (Data is updated on a monthly basis): 48250