Both of the dielectric constant and pyroelectric coefficient decrease with decreasing temperature, no anomalies being observed.
介电常数和热释电系数两者都随温度降低而下降，无反常变化。
The dielectric constant, pyroelectric coefficient, thickness extension vibration electromechanical coupling factor and their temperature dependence are investigated.
研究了它们的介电常数，热电系数，厚度伸缩振动机电耦合系数及其温度依赖性。
The dielectric constant was almost a constant, while the dielectric loss and temperature coefficient of dielectric constant were sensitive to the sintering conditions.
随着烧结条件的不同，介电常数几乎不变，但介电损耗以及介电常数的温度系数则较为敏感。
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