Category:Acoustic liners

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<nowiki>acoustic liner; sandwich panel made by porous facing sheet (e.g. perforated metal sheet), a honeycomb layer, and an impervious back-sheet. It used to lower the noise of aircraft engines via Helmholtz resonance</nowiki>
acoustic liner 
sandwich panel made by porous facing sheet (e.g. perforated metal sheet), a honeycomb layer, and an impervious back-sheet. It used to lower the noise of aircraft engines via Helmholtz resonance
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Media in category "Acoustic liners"

The following 7 files are in this category, out of 7 total.