TRANSPORT · TRANSPORT|air and space transport
- fuaimlíneáil Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- líneáil fhuaimiúil Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
- ga
- acoustic liner
- en
- Definition a sound absorbent lining fixed to the walls of turbojet or rocket engine ducts,ground mufflers,etc.The lining can consist of fibrous materials or perforated sheets spaced from a solid backing sheet by a honeycomb layer.Resonating cavities,e.g.Helmholtz resonators can also be employed Reference Multilingual Aeronautical Dictionary(AGARD,1980)