锻压机械噪声声功率级测量方法
Metal forming machinery - Noise measurement method of sound power levels

2009-03-16

Acoustics - Noise Emitted by Machinery and Equipment - Measurement of Emission Sound Pressure Levels at a Work Station and at Other Specified Positions - Survey Method in Situ
声学.机械和设备发出的噪声.工作站和其他指定位置的发射声压级测量.现场测量方法

1996-01-01