
ACOUSTICS - NOISE EMITTED BY MACHINERY AND EQUIPMENT - DETERMINATION OF EMISSION SOUND PRESSURE LEVELS AT THE WORK STATION AND AT OTHER SPECIFIED POSITIONS
出版:British Standards Institution

專家解讀視頻
ACOUSTICS - NOISE EMITTED BY MACHINERY AND EQUIPMENT - DETERMINATION OF EMISSION SOUND PRESSURE LEVELS AT THE WORK STATION AND AT OTHER SPECIFIED POSITIONS
出版:British Standards Institution
專家解讀視頻