acoustic material underwater的用法和样例：
- The underwater acoustic properties of polyurethanes were introduced. The recent research progress of underwater acoustic materials of polyurethanes was reviewed.
- Acoustic Material Acoustic material is any material considered in terms of its acoustic properties, especially its properties of absorbing or deadening sound.
- Ecadi propose to have acoustical material under each VAV unit, O OK.
- Development for high efficiency acoustic material
- native English acoustic material