进行了一次正压电效应、二次逆压电效应的理论分析与实验验证。
The theory of the first direct piezoelectric effect and the secondary converse piezoelectric effect is analyzed and confirmed by experiments.
压电材料具有正压电效应和逆压电效应，它既可以作为传感器又可以作为作动器。
Because of the positive piezoelectric effect and inverse piezoelectric effect, piezoelectric materials can be both a sensor and an actuator.
压电材料具有正压电效应和逆压电效应，它既可以作为传感器又可以作为作动器。
Because of the positive piezoelectric effect and inverse piezoelectric effect, piezoelectric materials can be both a sensor and an actuator.
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