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Noise from pneumatic rock drills shape and exit noise of an exhaust muffler
Studies were made to determine the effect of the shape of a pneumatic-rock-drill exhaust muffler on its efficiency, and the origin and reduction of exit noise from the mufflers. The report describes the investigation of rock-drill noise abatement.
- "Studies were made to determine the effect of the shape of a pneumatic-rock-drill exhaust muffler on its efficiency, and the origin and reduction of exit noise from the mufflers. The report describes the investigation of rock-drill noise abatement."@en
- "Noise from pneumatic rock drills shape and exit noise of an exhaust muffler"@en
- "Noise from pneumatic rock drills : shape and exit noise of an exhaust muffler"@en