求翻译：实验发现，PZT陶瓷在电场作用下的物理力学响应规律强烈依赖于其相结构，铁电畴变是材料出现物理力学响应非线性的本质原因。首次用实验证明了四方相的PZT陶瓷矫顽场高于三方相和相界的PZT陶瓷，难以极化。是什么意思？

It was found that the law of the physical and mechanical response of pzt ceramics under an electric field is strongly dependent on its structure, the ferroelectric domain switching is the reason of the nature of the material physical and mechanical response of nonlinear. The first experimental proof

Lab found PZT ceramics in an electric field, the laws of physical mechanics response depends strongly on the ferroelectric phase structure, which is material is a physical response non-linear dynamics of the essence. Used for the first time experimental proof of the 4 parties in the PZT ceramic, stu

The experiment discovered that, the PZT ceramics relies on under electric field function physical mechanics response rule its phase structure, the hard electric domain changes is intensely the material appears the physical mechanics response non-linear essence reason.Used the experiment to prove for

Experiments found that PZT ceramics under electric field of mechanical response of strongly depends on its physical structure, ferroelectric materials mechanical response of nonlinear physical nature is the reason. Demonstrate for the first time the coercive field of Tetragonal phase of PZT ceramics

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