, not limited to being normal to active surface;(2) our theory can be applied to different media (air, water, oil).Fig.1 shows a rectangular parallelepiped, where the top flexi...

• 最后通过计算机仿真证明了该吸声层吸收低频声波的有效性，并研究了吸声效果与次级力源位置的关系。