{HEAD ~ The panel} is optimized in term of space requirement and {TAIL ~ weight} for use in aircraft and has improved sound absorption properties 
{ HEAD ~ The panel } is optimized in term of space requirement and { TAIL ~ weight } for use in aircraft and has improved sound absorption properties
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH