PNdB
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PNdb — perceived noise decibel … Medical dictionary
PNdB — abbreviation perceived noise decibel(s) … English new terms dictionary
PNdb — • perceived noise decibel … Dictionary of medical acronyms & abbreviations
PNdB — aeronaut. abbr. Perceived Noise Decibels … United dictionary of abbreviations and acronyms
General Electric GE4 — The General Electric GE4 turbojet engine was designed in the late 1960s as the powerplant for both the Boeing 2707 supersonic transport (where it was known as the GE4/J5P variant). The GE4 was a single stage, single shaft, axial flow turbojet… … Wikipedia
per|ceived noise decibel — «puhr SEEVD», a standard unit for measuring noise as perceived by people, based on the type of sound and its intensity: »Airplane noise is measured in perceived noise decibels (New York Times). Abbr: PNdB or PNdb (no periods) … Useful english dictionary
Abkürzungen/Luftfahrt/L–R — Dies ist der vierte Teil der Liste Abkürzungen/Luftfahrt. Liste der Abkürzungen Teil 1 A A Teil 2 B–D B; C; D Teil 3 E–K … Deutsch Wikipedia
