非对称双塔连体结构比对称双塔连体结构的扭转振型和耦合振型要多，振型也更为复杂；
The twist and coupled modes of the asymmetry twin-tower connected structures were more complicated than the symmetry ones.
扬声器的驱动元件是边缘固定的圆形PZT 双型弯曲振子，振动——辐射元件是圆锥形纸盆，这两部分之间采用弹性耦合。
The driving system of the speaker is constructed by a circular PZT bimorph, which is clamped on its boundary, An elastical coupling element is utilized between the bimorph and the speaker cone.
由于箱式浮体结构的低阶固有频率很低，相应的弹性振型的响应与刚体运动耦合，结构在波浪中没有发现明显的低阶弹性模态谐振。
No significant resonance of the low flexible body modes is found due to the coupling of the responses among these modes and the rigid body modes.
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