ceramic plate短语¹⁴⁴⁹⁷²⁺² 基本例句 陶瓷板 Based on the equivalent elasticity method, the plane coupling vibration of a rectangular piezoelectric ceramic plate was studied and the resonant frequency equation was derived out. 利用等效弹性法分析了压电矩形共振器的二维耦合振动，导出了振子共振频率的解析表达式。 cnki