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PNR
(redirected from Passive Noise Reduction)

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AcronymDefinition
PNRPartner
PNRPassenger Name Record (airlines)
PNRPolicía Nacional Revolucionaria (Cuban police)
PNRPhilippine National Railways
PNRPoint of No Return
PNRPolymerase Chain Reaction
PNRPassive Noise Reduction
PNRPolarized Neutron Reflectivity
PNRPrior Notice Required
PNRPointe Noire, Congo - Pointe Noire (Airport Code)
PNRParty of the New Republic (Iraqi political group)
PNRPlug and Run
PNRPrudential Network Realty
PNRPart Number Request
PNRProved Name Registration
PNRPrivate Network Route
PNRPassenger Numerical Roll
PNRPassenger Number of Requisition
PNRPublication Number Request
PNRPartner Network Recruitment


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? References in periodicals archive
IT MEANS A SNUG FIT ON THE SNUG AND EARS GIVES YOU PASSIVE NOISE REDUCTION .
A headset for the HMMWV! by PS, the Preventive Maintenance Monthly
Army personnel armor system ground troops helmet and the newer advanced combat helmet, the ITH provides hearing protection through both active and passive noise reduction technologies and enables soldiers to communicate in the high-noise environment (up to 95-plus decibels) that is typical of the M1114 up-armored HMMWV.
Program Executive Office for Enterprise Information Systems news ... by Larsen, Stephen / Defense AT & L
Because on-ear headphones are less effective at providing passive noise reduction (the physical blocking of noise), Bose engineers had to develop new ways to increase the active noise reduction in the QC(TM)3 headphones.
Bose Introduces New QuietComfort 3 Acoustic Noise Cancelling ... by Business Wire
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