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PNdB

abbr.
commun., earth.sc. décibel de bruit perçu; PNdB
 English thesaurus
PNdB abbr.
abbr. perceived noise in decibel units; Perceived Noise-level in decibels; Perceived Noise Decibels
tech. perceived noise level in decibels
PNDB abbr.
abbr., tech. perceived noise decibel

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