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asphalt mobile crusher sound decibel level information

Our leading products have crushing equipment, sand making equipment, mobile crusher;The products includes five series: crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.
Table 53 increase of noise given by the sound power level difference lw due to doubling of typical velocity (eg average flow velocity of gas jets rotational speed of fans) after k&246;ltzsch 1984 mechanism example increase in sound power due to doubling typical velocity pulsation reciprocating compressor 12 db turbulence exhaust fan 18 db.

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