The piezoelectric properties of single crystals as below: piezoelectric coupling coefficient k_p(k_t) are 0.69(0.49);
单晶的压电性能测试结果为：平面和厚度机电耦合系数分别为0.69、0.49；
The piezoelectric properties of single crystals as below: piezoelectric coupling coefficient k_p(k_t) are 0.69(0.49);
单晶的压电性能测试结果为：平面和厚度机电耦合系数分别为0.69、0.49；
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