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MUFFLING THE NOISE OF TESTING STATIONS OF AIRCRAFT-ENGINE FACTORIES
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
The combatting of noises at the testing stations of aircraft-engine factories is carried on by the method of collective protection against noise, and is accomplished in two ways muffling the noise emitted from the intake and exhaust channels and sound insulation against the noises penetrating through the partitions of the test cabinets. Author