File:A Circular Attenuator.jpg

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Description
English: A typical installation of a circular sound trap. The outer diameter of the sound trap is larger than the surrounding ductwork, resulting in a visual bulge
Date
Source Own work
Author Bcudequest

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8 August 2019

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99cd23aafd8eaaafb4e1497dcda0468f52056790

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Date/TimeThumbnailDimensionsUserComment
current11:47, 11 January 2020Thumbnail for version as of 11:47, 11 January 20203,022 × 3,023 (927 KB)wikimediacommons>BcudequestCross-wiki upload from en.wikipedia.org

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