Methods the sound level and frequency were measured according to the corresponding health criterion and measuring method at big production equipment, crush room, control room and workshop.
方法是根据有关卫生标准及检测方法对生产设备、休息室、控制室等作业场所进行声强和频谱的测量。
Methods the sound level and frequency were measured according to the corresponding health criterion and measuring method at big production equipment, crush room, control room and workshop.
方法是根据有关卫生标准及检测方法对生产设备、休息室、控制室等作业场所进行声强和频谱的测量。
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