acoustic absorption造句

1、a unit of acoustic absorption equivalent to the absorption by a square foot of a surface that absorbs all incident sound.

2、The closed cell polyimide foams were fabricated by foaming the precursor balloons, and the foams' acoustic absorption properties were tested.

3、These 'trees' provide seating, shade and acoustic absorption and at night they serve as an illuminate bodies which fill the room with white or blue glowing light.

4、The noise-deadening property was also analyzed and pointed that it was a new composite material which has much high performance such as excellent noise-deadening and acoustic absorption etc.