大截面变幅杆能够传输更大功率更高声强的振动能量，因此对这类变幅杆的研究成为迫切需要。
The large cross-section acoustic horn can transmit more power and higher intensity sound, therefore research on this kind of acoustic horn becomes more and more emergent.
不同形式的波在结构中传输时携带着不同的振动能量。
Various wave types propagating in structures carry different vibration power.
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