Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: intrinsic characteristics - In situ values of sound diffraction
German title
Lärmschutzvorrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 4: Produktspezifische Merkmale - In-situ-Werte der Schallbeugung
Original language
English,
French
Pages
88
Original language
English,
French
Pages
88
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